Who sends greeting cards for the Fourth of July? Apparently spammers. Beware of emails with Fourth of July subject lines such as:
Subject: Celebrate Your IndependenceSubject: America the BeautifulSubject: July 4th Fireworks ShowSubject: July 4th Family DaySubject: 4th Of July CelebrationSubject: American Pride, On The 4th
Each message contains a link to the "greeting card". The link in these cases is an exposed IP address, which is a pretty good indicator that it isn’t a greeting card from an established and reputable Ecard service . When clicked, the link delivers a downloader that accesses the Internet and downloads a Trojan onto the computer.