Facebook has partnered with five organisations and opened up an antivirus marketplace in a move to protect users from malware.
Facebook's initial marketplace partners are McAfee, Microsoft, Norton, Sophos and Trend Micro, which will all provide some of their products free for six months.
Microsoft's Security Essentials is a free download that has no licence expiry. Users will be able to download and use, for six months, McAfee's Internet Security 2012, Norton's AntiVirus, Sophos' Anti-Virus for Mac Home Edition and Trend Micro's Titanium Security Essentials for PC users or Smart Surfing for Mac users.
Users are currently required to have a Facebook account in order to download these products.
The five companies will also provide Facebook with information from their databases about which URLs are considered malicious. This information will in turn be used to improve Facebook's URL-blacklisting system, which, according to the company, scans trillions of clicks per day, and has resulted in reducing spam content on the site to 4 per cent of total content.
In addition to helping Facebook with its URL blocker, the five companies have been invited to provide security news and information on the Facebook Security Blog.