Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to prevent phishing [title] Be alert for spam messages. [substeps] Do not reply to emails that request financial information, even if it appears to be from a trusted source. Do not reply to emails from unrecognized senders.

Ending1: Have an in-person conversation with an official mail carrier in your area. Do not reply to emails that request financial information such as credit card or car payments. Ending2: Regularly reply to emails from untrusted people. This way you can handle the spam quicker if you accidentally receive a phishing alert. Ending3: Phishing attempts are not likely to be personalized. Do not open any links in suspicious emails, instant messages, or chat-room messages. Ending4: Similarly, untrusted senders will email you when it's time to open a new email or refuse to return it. [title] Understand phishing marketplaces and forums.

Answer format: ending1/ending2/ending3/ending4