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Marriott buys stake in tours/activities search engine
Marriott International has acquired a stake in PlacePass, as the world's largest hotel company looks to expand its presence in the tours and activities sector.Read more
January 11, 2012
Spam, one of the Internet's oldest annoyances, is gearing up for a second act. Unlike traditional email spam, which usually comes from strangers, this new form—dubbed "social" spam—often appears to be from a friend.
Social spam is growing as attacks launched via traditional email come-ons appear to be declining. In November, 70.5% of all email was spam, down from a recent high of 92.2% in August 2010, according to security-software maker Symantec Corp. Improved filters and law enforcement have made email attacks increasingly difficult.
Such spam puts the usefulness of social networking at risk. Facebook says less than 4% of the content shared on its site is spam and Twitter says just 1.5% of all tweets were "spammy" in 2010. But Facebook adds that the volume is growing faster than its user base. On any given day, spam hits less than 0.5% of Facebook users, or some four million people.
Hackers commonly sow social spam by creating false Facebook profiles and then "friending" people they don't know. Once the new friend clicks on a bad link, the spam begins propagating as his other friends do the same. And it can get started through nefarious third-party apps, or when people download malware outside Facebook or Twitter that gives hackers control of their computers.
Get the full story at The Wall Street Journal
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