we evaluate emerging technologies and industry standards and continually update our technology in order to retain our leadership position in each market we serve . we monitor legal and technological developments in the area of information security and confidentiality to ensure our policies and procedures meet or exceed the demands of the world 's largest and most demanding corporations . we believe that these efforts will allow us to effectively anticipate changing customer and consumer requirements in our rapidly evolving industry . expanding our international presence . we continue to invest in sales and support personnel in the united kingdom , asia-pacific , latin america and western europe , particularly france and germany . we are also working with sales and support partners in the asia-pacific region . we continue to improve our e-commerce capabilities , and the multi-language and translation capabilities within our hosted solutions to further support international expansion . 36 continuing to build brand recognition . as a pioneer of brand-to-consumer digital messaging , liveperson enjoys strong brand recognition and credibility . our focus on creating meaningful connections among employees , with our customers , and between brands and their consumers , is a key component of our culture and our market strategy . we strategically target decision makers and influencers within key vertical markets , leveraging customer successes to generate increased awareness and demand for brand-to-consumer messaging . increasing the value of our service to our customers . we regularly add both new products and services , and new features and functionality to our existing services to further enhance value to our customers . because we directly manage the server infrastructure , we can make new features available to our customers immediately upon release , without customer or end-user installation of software or hardware . we continue to enhance our reporting , analysis , and administrative tools as part of our overall portfolio of services , as well as our ability to capture , analyze , and report on the substantial amount of online activity data we collect on behalf of our customers to further our customers ' online strategies . evaluating strategic alliances and acquisitions when appropriate . we have successfully integrated several acquisitions over the past decade . in addition to our acquisition of engage referenced above , most recently we acquired contact at once ! , llc . ( “ cao ! ” ) , a unique messaging platform with leading market share in the automotive industry . while we have in the past , and may from time to time in the future , engage in discussions regarding acquisitions or strategic transactions or to acquire other companies that can accelerate our growth or broaden our product offerings , we currently have no binding commitments with respect to any future acquisitions or strategic transactions . key metrics financial overview of the three and twelve months ended december 31 , 2015 compared to the comparable periods in 2014 are as follows : revenue increased 2 % and 14 % to $ 59.2 million and $ 239.0 million in the three and twelve months ended december 31 , 2015 , respectively , from $ 58.2 million and $ 209.9 million in the comparable periods in 2014 . revenue from our business segment increased 2 % and 16 % to $ 55.2 million and $ 223.8 million in the three and twelve months ended december 31 , 2015 , respectively , from $ 54.0 million and $ 193.3 million in the comparable periods in 2014 . gross profit margin decreased to 63 % and 71 % in the three and twelve months ended december 31 , 2015 from 75 % in the comparable periods in 2014 . cost and expenses increased 2 % and 16 % to $ 61.7 million and $ 249.4 million in the three and twelve months ended december 31 , 2015 , respectively , from $ 60.6 million and $ 215.1 million in the comparable periods in 2014 . net loss increased to $ 21.0 million and $ 26.4 million in the three and twelve months ended december 31 , 2015 , respectively , from net loss of $ 4.2 million and $ 7.3 million for the three and twelve months ended december 31 , 2014 , respectively . trailing-twelve-month average revenue per enterprise and mid-market customer increased 20 % year-over-year to $ 197,000 in 2015 from $ 164,000 in 2014. the trailing-twelve-month revenue figures are pro forma to exclude contributions from a previously disclosed customer contract that ended in the second quarter of 2015. customer renewal rate for enterprise and mid-market customers was 84 % and 91 % over the trailing twelve months ended december 31 , 2015 and 2014 , respectively . revenue the majority of our revenue is generated from monthly service revenues and related professional services from the sale of the liveperson services . we charge a monthly fee , which varies by service and customer usage . the majority of our larger customers also pay a professional services fee related to implementation and ongoing optimization services . a large proportion of our revenue from new customers comes from large corporations . these companies typically have more significant implementation requirements and more stringent data security standards . such customers also have more sophisticated data analysis and performance reporting requirements , and are likely to engage our professional services organization to provide such analysis and reporting on a recurring basis . revenue from our business segment accounted for 94 % of total revenue for the year ended december 31 , 2015 . revenue from our business segment accounted for 92 % of total revenue for the years ended december 31 , 2014 and 2013 , respectively . revenue attributable to our monthly hosted business services accounted for 84 % of total business revenue for the year ended december 31 , 2015 . story_separator_special_tag additional amortization expense in the amount of $ 3.2 million , $ 3.5 million , and $ 1.8 million is included in cost of revenue for the years ended december 31 , 2015 , 2014 , and 2013 , respectively . other ( expense ) income , net other income , net primarily consists of interest income on cash and cash equivalents , investment income and financial ( expense ) income which is a result of currency rate fluctuations associated with exchange rate movement of the u.s. dollar against the new israeli shekel , pound sterling , japanese yen , aus dollar and the euro . replace_table_token_15_th investment income decreased by $ 0.7 million in 2015 compared to 2014 primarily due to a decrease in income earned on the investment in technology licenses purchased during 2014. financial income increased $ 0.6 million in 2015 compared to 2014. investment income increased $ 0.7 million in 2014 compared to 2013 primarily due to income earned on the investment in technology licenses purchased during 2014. financial expense increased $ 1.3 million in 2014 compared to 2013. interest income remained flat in 2014 compared to 2013. provision for ( benefit from ) income taxes replace_table_token_16_th income tax expense increased $ 14.0 million resulting in a tax expense of $ 15.8 million for the year ended december 31 , 2015 , compared to $ 1.9 million for the year ended december 31 , 2014 . our consolidated effective tax rate is impacted by the statutory income tax rates applicable to each of the jurisdictions in which we operate . the increase is a result of a valuation allowance established for a significant portion of our deferred tax asset on our balance sheet as it was determined to be more likely than not that we would not realize a portion of our deferred tax asset . 43 income tax expense increased $ 2.5 million resulting in a tax expense of $ 1.9 million for the year ended december 31 , 2014 , compared to an income tax benefit of $ 0.6 million for the year ended december 31 , 2013. our consolidated effective tax rate is impacted by the statutory income tax rates applicable to each of the jurisdictions in which we operate . net loss we had a net loss of $ 26.4 million in 2015 compared to a net loss of $ 7.3 million in 2014 . revenue increased approximately $ 29.1 million while operating expenses increased by approximately $ 34.3 million and the provision for ( benefit from ) income taxes increased approximately $ 14.0 million , contributing to a net increase in net loss of approximately $ 19.1 million . we had a net loss of $ 7.3 million in 2014 compared to a net loss of $ 3.5 million in 2013 . revenue increased approximately $ 32.1 million while operating expenses increased by approximately $ 32.8 million and the provision for ( benefit from ) income taxes increased approximately $ 2.5 million contributing to a net increase in net loss of approximately $ 3.8 million . quarterly results of operations data the following table sets forth , for the periods indicated , the company 's financial information for the eight most recent quarters ended december 31 , 2015 . in the company 's opinion , this unaudited information has been prepared on a basis consistent with the annual consolidated financial statements and includes all adjustments , consisting only of normal recurring adjustments , necessary for a fair presentation of the unaudited information for the periods presented . this information should be read in conjunction with the consolidated financial statements , including the related notes , included herein . replace_table_token_17_th ( 1 ) decreases in the fair value of contingent consideration of $ 1.9 million and $ 0.5 million for the quarters ended september 30 , 2015 and june 30 , 2015 , respectively , have been reclassified to general and administrative expenses from cost of revenue to conform to full year presentation . 44 story_separator_special_tag style= `` font-family : inherit ; font-size:10pt ; `` > as of december 31 , 2015 , our principal commitments were approximately $ 34.5 million under various operating leases , of which approximately $ 9.8 million is due in 2016. we currently expect that our principal commitments for the year ending december 31 , 2016 will not exceed approximately $ 10.0 million in the aggregate . our contractual obligations at december 31 , 2015 are summarized as follows ( amounts in thousands ) : replace_table_token_19_th capital expenditures in 2015 , we incurred costs related to the continued expansion of our co-location facilities and office build-outs of approximately $ 9.7 million . we expect to incur additional costs in 2016 related to the continued expansion of our co-location facilities including the addition of two data centers in australia and office build-outs to support our growth . our total capital expenditures are not currently expected to exceed $ 11.0 million in 2016. we anticipate that our current cash and cash equivalents and cash from operations will be sufficient to fund these capital expenditures . indemnifications we enter into service and license agreements in the ordinary course of business . pursuant to some of these agreements , we agree to indemnify certain customers from and against certain types of claims and losses suffered or incurred by them as a result of using our products . we also have agreements whereby our executive officers and directors are indemnified for certain events or occurrences while the officer or director is , or was serving , at our request in such capacity . the maximum potential amount of future payments we could be required to make under these indemnification agreements is unlimited ; however , we have a directors and officers insurance policy that reduces our exposure and enables us to recover a portion of any future amounts paid . as a result of our insurance policy coverage , we believe the

liquidity and capital resources replace_table_token_18_th as of december 31 , 2015 , we had approximately $ 48.8 million in cash and cash equivalents , a decrease of approximately $ 0.6 million from december 31 , 2014 . this decrease is primarily attributable to cash used in the purchase of fixed assets related to the build-out of our co-location facility and net cash used in financing activities to repurchase our common stock . this is partially offset by net cash provided by operating activities and , to a lesser extent , proceeds from the issuance of common stock in connection with the exercise of stock options by employees . we invest our cash in short-term money market funds . net cash provided by operating activities was $ 21.8 million in the year ended december 31 , 2015 and consisted primarily of net loss , non-cash expenses related to stock-based compensation , amortization of purchased intangibles , depreciation , deferred tax and change in fair value of contingent consideration . this was partially offset by an increase in accounts receivable and a decrease in accounts payable . net cash provided by operating activities was $ 15.7 million in the year ended december 31 , 2014 and consisted primarily of net loss , non-cash expenses related to stock-based compensation , amortization of purchased intangibles and depreciation and increases in prepaid expenses , accounts receivable , accrued expenses and deferred revenue , partially offset by a decrease in accounts payable net cash used in investing activities was $ 18.5 million in the year ended december 31 , 2015 and was due primarily to the purchase of fixed assets for our co-location facilities and increase in cash held as collateral by $ 5.4 million .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```liquidity and capital resources replace_table_token_18_th as of december 31 , 2015 , we had approximately $ 48.8 million in cash and cash equivalents , a decrease of approximately $ 0.6 million from december 31 , 2014 . this decrease is primarily attributable to cash used in the purchase of fixed assets related to the build-out of our co-location facility and net cash used in financing activities to repurchase our common stock . this is partially offset by net cash provided by operating activities and , to a lesser extent , proceeds from the issuance of common stock in connection with the exercise of stock options by employees . we invest our cash in short-term money market funds . net cash provided by operating activities was $ 21.8 million in the year ended december 31 , 2015 and consisted primarily of net loss , non-cash expenses related to stock-based compensation , amortization of purchased intangibles , depreciation , deferred tax and change in fair value of contingent consideration . this was partially offset by an increase in accounts receivable and a decrease in accounts payable . net cash provided by operating activities was $ 15.7 million in the year ended december 31 , 2014 and consisted primarily of net loss , non-cash expenses related to stock-based compensation , amortization of purchased intangibles and depreciation and increases in prepaid expenses , accounts receivable , accrued expenses and deferred revenue , partially offset by a decrease in accounts payable net cash used in investing activities was $ 18.5 million in the year ended december 31 , 2015 and was due primarily to the purchase of fixed assets for our co-location facilities and increase in cash held as collateral by $ 5.4 million .
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 Suspicious Activity Report : we evaluate emerging technologies and industry standards and continually update our technology in order to retain our leadership position in each market we serve . we monitor legal and technological developments in the area of information security and confidentiality to ensure our policies and procedures meet or exceed the demands of the world 's largest and most demanding corporations . we believe that these efforts will allow us to effectively anticipate changing customer and consumer requirements in our rapidly evolving industry . expanding our international presence . we continue to invest in sales and support personnel in the united kingdom , asia-pacific , latin america and western europe , particularly france and germany . we are also working with sales and support partners in the asia-pacific region . we continue to improve our e-commerce capabilities , and the multi-language and translation capabilities within our hosted solutions to further support international expansion . 36 continuing to build brand recognition . as a pioneer of brand-to-consumer digital messaging , liveperson enjoys strong brand recognition and credibility . our focus on creating meaningful connections among employees , with our customers , and between brands and their consumers , is a key component of our culture and our market strategy . we strategically target decision makers and influencers within key vertical markets , leveraging customer successes to generate increased awareness and demand for brand-to-consumer messaging . increasing the value of our service to our customers . we regularly add both new products and services , and new features and functionality to our existing services to further enhance value to our customers . because we directly manage the server infrastructure , we can make new features available to our customers immediately upon release , without customer or end-user installation of software or hardware . we continue to enhance our reporting , analysis , and administrative tools as part of our overall portfolio of services , as well as our ability to capture , analyze , and report on the substantial amount of online activity data we collect on behalf of our customers to further our customers ' online strategies . evaluating strategic alliances and acquisitions when appropriate . we have successfully integrated several acquisitions over the past decade . in addition to our acquisition of engage referenced above , most recently we acquired contact at once ! , llc . ( “ cao ! ” ) , a unique messaging platform with leading market share in the automotive industry . while we have in the past , and may from time to time in the future , engage in discussions regarding acquisitions or strategic transactions or to acquire other companies that can accelerate our growth or broaden our product offerings , we currently have no binding commitments with respect to any future acquisitions or strategic transactions . key metrics financial overview of the three and twelve months ended december 31 , 2015 compared to the comparable periods in 2014 are as follows : revenue increased 2 % and 14 % to $ 59.2 million and $ 239.0 million in the three and twelve months ended december 31 , 2015 , respectively , from $ 58.2 million and $ 209.9 million in the comparable periods in 2014 . revenue from our business segment increased 2 % and 16 % to $ 55.2 million and $ 223.8 million in the three and twelve months ended december 31 , 2015 , respectively , from $ 54.0 million and $ 193.3 million in the comparable periods in 2014 . gross profit margin decreased to 63 % and 71 % in the three and twelve months ended december 31 , 2015 from 75 % in the comparable periods in 2014 . cost and expenses increased 2 % and 16 % to $ 61.7 million and $ 249.4 million in the three and twelve months ended december 31 , 2015 , respectively , from $ 60.6 million and $ 215.1 million in the comparable periods in 2014 . net loss increased to $ 21.0 million and $ 26.4 million in the three and twelve months ended december 31 , 2015 , respectively , from net loss of $ 4.2 million and $ 7.3 million for the three and twelve months ended december 31 , 2014 , respectively . trailing-twelve-month average revenue per enterprise and mid-market customer increased 20 % year-over-year to $ 197,000 in 2015 from $ 164,000 in 2014. the trailing-twelve-month revenue figures are pro forma to exclude contributions from a previously disclosed customer contract that ended in the second quarter of 2015. customer renewal rate for enterprise and mid-market customers was 84 % and 91 % over the trailing twelve months ended december 31 , 2015 and 2014 , respectively . revenue the majority of our revenue is generated from monthly service revenues and related professional services from the sale of the liveperson services . we charge a monthly fee , which varies by service and customer usage . the majority of our larger customers also pay a professional services fee related to implementation and ongoing optimization services . a large proportion of our revenue from new customers comes from large corporations . these companies typically have more significant implementation requirements and more stringent data security standards . such customers also have more sophisticated data analysis and performance reporting requirements , and are likely to engage our professional services organization to provide such analysis and reporting on a recurring basis . revenue from our business segment accounted for 94 % of total revenue for the year ended december 31 , 2015 . revenue from our business segment accounted for 92 % of total revenue for the years ended december 31 , 2014 and 2013 , respectively . revenue attributable to our monthly hosted business services accounted for 84 % of total business revenue for the year ended december 31 , 2015 . story_separator_special_tag additional amortization expense in the amount of $ 3.2 million , $ 3.5 million , and $ 1.8 million is included in cost of revenue for the years ended december 31 , 2015 , 2014 , and 2013 , respectively . other ( expense ) income , net other income , net primarily consists of interest income on cash and cash equivalents , investment income and financial ( expense ) income which is a result of currency rate fluctuations associated with exchange rate movement of the u.s. dollar against the new israeli shekel , pound sterling , japanese yen , aus dollar and the euro . replace_table_token_15_th investment income decreased by $ 0.7 million in 2015 compared to 2014 primarily due to a decrease in income earned on the investment in technology licenses purchased during 2014. financial income increased $ 0.6 million in 2015 compared to 2014. investment income increased $ 0.7 million in 2014 compared to 2013 primarily due to income earned on the investment in technology licenses purchased during 2014. financial expense increased $ 1.3 million in 2014 compared to 2013. interest income remained flat in 2014 compared to 2013. provision for ( benefit from ) income taxes replace_table_token_16_th income tax expense increased $ 14.0 million resulting in a tax expense of $ 15.8 million for the year ended december 31 , 2015 , compared to $ 1.9 million for the year ended december 31 , 2014 . our consolidated effective tax rate is impacted by the statutory income tax rates applicable to each of the jurisdictions in which we operate . the increase is a result of a valuation allowance established for a significant portion of our deferred tax asset on our balance sheet as it was determined to be more likely than not that we would not realize a portion of our deferred tax asset . 43 income tax expense increased $ 2.5 million resulting in a tax expense of $ 1.9 million for the year ended december 31 , 2014 , compared to an income tax benefit of $ 0.6 million for the year ended december 31 , 2013. our consolidated effective tax rate is impacted by the statutory income tax rates applicable to each of the jurisdictions in which we operate . net loss we had a net loss of $ 26.4 million in 2015 compared to a net loss of $ 7.3 million in 2014 . revenue increased approximately $ 29.1 million while operating expenses increased by approximately $ 34.3 million and the provision for ( benefit from ) income taxes increased approximately $ 14.0 million , contributing to a net increase in net loss of approximately $ 19.1 million . we had a net loss of $ 7.3 million in 2014 compared to a net loss of $ 3.5 million in 2013 . revenue increased approximately $ 32.1 million while operating expenses increased by approximately $ 32.8 million and the provision for ( benefit from ) income taxes increased approximately $ 2.5 million contributing to a net increase in net loss of approximately $ 3.8 million . quarterly results of operations data the following table sets forth , for the periods indicated , the company 's financial information for the eight most recent quarters ended december 31 , 2015 . in the company 's opinion , this unaudited information has been prepared on a basis consistent with the annual consolidated financial statements and includes all adjustments , consisting only of normal recurring adjustments , necessary for a fair presentation of the unaudited information for the periods presented . this information should be read in conjunction with the consolidated financial statements , including the related notes , included herein . replace_table_token_17_th ( 1 ) decreases in the fair value of contingent consideration of $ 1.9 million and $ 0.5 million for the quarters ended september 30 , 2015 and june 30 , 2015 , respectively , have been reclassified to general and administrative expenses from cost of revenue to conform to full year presentation . 44 story_separator_special_tag style= `` font-family : inherit ; font-size:10pt ; `` > as of december 31 , 2015 , our principal commitments were approximately $ 34.5 million under various operating leases , of which approximately $ 9.8 million is due in 2016. we currently expect that our principal commitments for the year ending december 31 , 2016 will not exceed approximately $ 10.0 million in the aggregate . our contractual obligations at december 31 , 2015 are summarized as follows ( amounts in thousands ) : replace_table_token_19_th capital expenditures in 2015 , we incurred costs related to the continued expansion of our co-location facilities and office build-outs of approximately $ 9.7 million . we expect to incur additional costs in 2016 related to the continued expansion of our co-location facilities including the addition of two data centers in australia and office build-outs to support our growth . our total capital expenditures are not currently expected to exceed $ 11.0 million in 2016. we anticipate that our current cash and cash equivalents and cash from operations will be sufficient to fund these capital expenditures . indemnifications we enter into service and license agreements in the ordinary course of business . pursuant to some of these agreements , we agree to indemnify certain customers from and against certain types of claims and losses suffered or incurred by them as a result of using our products . we also have agreements whereby our executive officers and directors are indemnified for certain events or occurrences while the officer or director is , or was serving , at our request in such capacity . the maximum potential amount of future payments we could be required to make under these indemnification agreements is unlimited ; however , we have a directors and officers insurance policy that reduces our exposure and enables us to recover a portion of any future amounts paid . as a result of our insurance policy coverage , we believe the

