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Scam Alert

How to Stop a Mac Computer Attack

Online thieves, scammers now target the mac user

It wasn't long ago that Mac users cruised cyberspace with assurance that their computers were all but invulnerable to the scammer attacks that so often hit the Windows-based PC.

See also: A guide for the PC user.

Macs may not be as immune to viruses as traditionally thought

Scammers target Mac users as the Apple computer grows in popularity. — Masterfile

Mac fans often boast that this is because Macs have fundamentally better security features. But some experts say there's another reason why malware such as viruses, Trojans and worms has historically been a bigger issue for the PC user: Because fewer people use Macs, Apple's machines simply haven't warranted the attention of cybercrooks, who devise their problematic programs to steal money and information from the most people possible. That means people who use PCs.

But Macs are now popular enough to rate a worthwhile target. One security study a few years ago predicted that Macs would be targeted for cyber-attacks when they grew to a 16 percent market share — and that's now been reached in the United States and other countries.

In the second quarter of this year, as PC shipments dropped, the number of Macs sold increased nearly 28 percent compared with the same period in 2010. Perhaps not so coincidentally, just one month after those figures were announced came other headlines: a scourge of malware was zeroing in on Macs.

In May, some Mac users began receiving advertisements for an antivirus software product called Mac Defender. In fact, it was a classic case of "scareware." It would display on-screen warnings of nonexistent virus infections or hit you with pop-up ads for pornography sites, and then offer protection — and not for free. It would demand credit card information, sometimes harvesting multiple account numbers by "rejecting" successively entered cards.

Apple first responded with various self-help suggestions. Then it issued a security "patch" to its OS X operating system. In the meantime, some of the attacks were tracked to a Russian online payment company known for pioneering fake antivirus software.

Now, with Apple a victim of its own success, some security experts are predicting more attacks.

So how can you avoid being bitten if you're an Apple loyalist?

  • Rather than relying solely on built-in protection in the OS X operating system, consider additional security software. Norton, McAfee and other companies sell security programs for Macs, and free software is available from Sophos and Avast. If you get these programs, run them frequently, ideally several times a week, and check for updates.

  • If you haven't let your Mac's software update feature run lately, don't delay. Apple releases security fixes on a regular basis, and without them you're vulnerable to trouble
  • Many experts recommend Firefox as a safer browser, but if you use the default Safari, turn off the option that automatically opens downloaded files deemed "safe." This can stop files favored by scammers from running automatically if you accidentally click their links.

Next: Mac or PC, advice for the user. >>

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