"Criminals are targeting internet users with a new gift certificate scam, according to security experts.
Users receive an email that claims to be from Apple's iTunes store, warns the Eleven security blog.
The ZIP file attached contains malware that may allow hackers to gain access to the recipient's computer."
"Facebook phishing
Security adviser Sophos warns of a separate threat linked to Facebook.
It says users are receiving emails claiming that they have violated the social network's policy regulations by annoying or insulting other members.
An attached link take users to a web page that presents them with a fake "Facebook Account Disabled" form.
The firm says that members are then asked to fill in a series of forms requesting their login details, country of residence and the first six digits of their credit card number."
""All these phishing scams boil down to a naked grab for your account details. Remember, neither Facebook nor other reputable social media sites would ask for this information.""