Cisco announced on January 12, 2005, that it would acquire Airespace for US$450 million to reinforce the wireless controller product lines. Cisco announced on January 4, 2007, that it would buy IronPort in a deal valued at US$830 million and completed the acquisition on June 25, 2007. IronPort was best known for its IronPort AntiSpam, its SenderBase email reputation service and its email security appliances. Accordingly, IronPort was integrated into the Cisco Security business unit. Ironport's Senderbase was renamed as Sensorbase to take account of the input into this database that other Cisco devices provide. SensorBase allows these devices to build a risk profile on IP addresses, therefore allowing risk profiles to be dynamically created on http sites and SMTP email sources. Cisco announced on March 15, 2012, that it would acquire NDS Group for $5bn. The transaction was completed on July 30, 2012. In more recent merger deals, Cisco bought Starent Networks (a mobile packet core company) and Moto Development Group, a product design consulting firm that helped develop Cisco's Flip video camera. Also in 2010, Cisco became a key stakeholder in "e-Skills Week". In March 2011, Cisco completed the acquisition of privately held network configuration and change management software company Pari Networks. Although many buy-ins (such as Crescendo Networks in 1993, Tandberg in 2010) resulted in acquisition of flagship technology to Cisco, many others have failed—partially or completely. For instance, in 2010 Cisco occupied a meaningful share of the packet-optical market, revenues were still not on par with US$7 billion price tag paid in 1999 for Cerent. Some of acquired technologies (such as Flip from Pure Digital) saw their product lines terminated. January 2013, Cisco Systems acquired Israeli software maker Intucell for around $475 million in cash, a move to expand its mobile network management offerings. In the same month, Cisco Systems acquired Cognitive Security, a company focused on Cyber Threat Protection. Cisco also acquired SolveDirect (cloud services) in March 2013 and Ubiquisys (mobile software) in April 2013. Cisco acquired cyber-security firm Sourcefire, in October 2013. On June 16, 2014, Cisco announced that it has completed the acquisition of ThreatGRID, a company that provided dynamic malware analysis and threat intelligence technology. June 17, 2014, Cisco announced its intent to acquire privately held Tail-f Systems, a leader in multi-vendor network service orchestration solutions for traditional and virtualized networks.