Rich MogullContributor, Macworld

Rich Mogull is a security analyst at Securosis. He's the security editor at TidBits and has been covering security for 20 years.

Protect your privacy: Web browsing

Ad networks, search engines, Internet service providers, and social networks all track, analyze, and sell almost everything you do online.

Protect your privacy: what happens to your data?

When criminals obtain your e-mail address, credit card, or Social Security Number, your information enters an underground economy where it’s sold, bought, and (maybe) eventually used in a crime.

Protect your privacy: keep your data safe

In the old days, you probably kept all of your private data on your Mac. Today, your information is most likely stored across multiple Macs, iOS devices, and cloud-based storage services. Fortunately, there are tools that can keep your data safe, no matter where it lies.

Protect your privacy: browse the Web safely

When you browse the Web, it’s like you’ve allowed a bunch of companies to implant a tracking device in your arm and a small camera in your head, recording where you go and what you look at. Thanks to ad networks, search engines, ISPs, and social networks, your online activities are tracked, analyzed, and sold.

Protect your privacy: take control of social networking

Maintaining privacy on social networks is much like hanging all your dirty laundry on a highway billboard—and then asking only your friends to look. While it's possible to avoid sharing your life's story with the entire world, it takes a lot of effort and is often contrary to the goals of the services you use. Remember, these services are free because they’re selling access to you.

Adobe Acrobat X: Do you feel safe yet?

Despite Acrobat's vulnerabilities, and its exploitation on Windows, the risk to Mac users today is immeasurably low. We just aren't seeing the attacks, says security expert Rich Mogull.

Living with Windows: security

When you use a Mac, you don't have to worry too much about malware. But when you put a Mac on a network with Windows PCs (or when you run Windows on a Mac), you have to give security some thought. Rich Mogull tells you what you do and don't have to worry about.

Mac security: what you can ignore

While there are indeed some real Mac security threats, there are also some well-publicized threats that Mac users can ignore. Here's what they are and why you don't need to worry about them.

Mac security: mobile threats

Portable technology is inherently risky: If there's a chance you'll lose your laptop or iPhone, there's a chance a bad guy will pick it up and take advantage of you.

Mac security: user error

One of the biggest security risks to your Mac is you--using poor passwords, downloading risky files, and other lapses in judgment. Here are the most common user errors and how to correct them.

Mac security: scams and fraud

Mac users face a few of the same security threats as their Windows and Linux counterparts: online scams, retail and auction fraud, and identity-theft.

Super-safe Web browsing

As a security consultant, Rich Mogull has to visit some less-than-safe quarters of the Internet. Here's how he does that without putting himself or his Mac at risk.

The iPhone's SMS vulnerability: What we learned

Reports of a new vulnerability that would have let a hacker take over an iPhone via SMS caused quite a stir at last week's Black and DefCon security conferences. While Apple has since patched the vulnerability, it still highlights some interesting issues about today's smartphones. Security expert Rich Mogull takes a closer look.

The truth about Apple, Mac security, and responsibility

Security expert Rich Mogull deconstructs Apple's failure to patch a Java security hole and the criticisms of those who think its security advertising rings false.

Mac Security: Firewalls

OS X has not just one, but two, firewalls built in. So when, if ever, do you need a third-party firewall program? Chris Pepper and Rich Mogull explain.