Ransomware is the latest email phishing scam to worry about. The U.S. Department of Homeland Security warns that hackers are  sending emails that claim they are from Homeland Security and its National Cyber Security Division (US-CERT). The emails say your computer use has been suspended and you have to pay a fine to unblock it.

US-CERT Advises:

Do not click on or submit any information to webpages.

• Do not follow unsolicited web links in email messages.
• Use caution when opening email attachments. Refer to the Security Tip Using Caution with Email Attachments for more information on safely handling email attachments.
• Maintain up-to-date antivirus software.