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August 4, 2009

Twitter filters malicious URLs including shortened ones

Filed as News with 1 comment

twitter-logo.jpgInternet security company F-Secure has announced the discovery that Twitter is now following its advice to filter all posted URLs, including shortened ones, for malicious content.

Their screenshot, copied below, shows what happens if you try to post a link to a site that Twitter considers leads to malware.

twitter-malware-alert

The message “Oops! Your tweet contained a URL to a known malware site!” pops up and the message cannot be posted. read more

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March 12, 2009

Exploring Social Media: Security and Monocultures

Exploring Social Media article series badgeF-secure reports on security vulnerabilities with Adobe Reader and Foxit Reader for reading PDF files.

While this could be seen as another day-in-the-life update, the warning came with an interesting twist:

Do note that while we are recommending users move away from Adobe Reader, we are not recommending any particular replacement.

…Instead, we recommend users to find their own Adobe Reader replacement.

This way we get more heterogeneous userbase, which is a good idea security-wise. Nobody wants to repeat what happened with the great IE —> Firefox switch. As 40% of users switched to Firefox, about 40% of the attacks switched to target Firefox.

Monocultures are bad.

In the new world of online social, more and more people using the same tools, putting us all at risk as hackers and attackers move towards the natural migration of popularity. Monocultures are bad as they open the door to mass risks. read more

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