ZDNet's coverage of the latest Mac Developer malware includes a full video of what it looks like to get infected by Mac Defender:

As Macenstein notes, it's easy to imagine someone getting tricked by the process.

After watching this I suppose I could see how someone (who is fairly trusting, not all that tech savvy, and easily scared) could be tricked into letting this install on their system, so I’m not AS “what kind of idiot got this?” as I once was.

Apple has recently release a software update that addresses at least some variants of Mac Defender, but users should be cautious as new versions seem to be popping up already.

Ed Bott also shows what happens when Mac OS X detects the dangerous download:

But even with Apple's protection, it's a confusing mess of windows and dialog boxes that could leave the user uncertain what to trust.

Top Rated Comments

David Ormesher Avatar
190 months ago
I haven't been paying THAT close attention to this story, but I didn't realize that you had to be completely naive and gullible (no offense to any reading this that fell for it) to get nailed. I thought it happened more in the background. It looks like you pretty much have to open up the door to your computer and invite the hacker in and offer him or her a beer.

Am I understanding this right? You have to fairly pro-actively install this on your computer, it doesn't happen behind the scenes like Microshaft products do?
Score: 6 Votes (Like | Disagree)
DanMan93 Avatar
190 months ago
I would be EXTREMELY LIVID if Apple arbitrarily decided to close all of my Safari windows simply because I randomly encountered a stupid hack social engineering trojan. (FYI, at this particular instant I have over 50 active web page tabs open in 14 Safari windows and this has been a slow night.)

Well I guess closing all windows would be a bit extreme, but they could make use of Apples sandboxing technology and close just the tab that the download started in. That sounds a bit more reasonable, no?
Score: 4 Votes (Like | Disagree)
TheAppleDragon Avatar
190 months ago
To think, everyone freaked out over this. This has been going on for a few years now, and each time a news article pops up about it, the "Macs better watch out now!", "the Macs aren't so safe now!", "Look who's got viruses now!". It's a bunch of hype. :p

Quite amusing and annoying at the same time.

Move along folks, this ain't nothing new yet.
Score: 2 Votes (Like | Disagree)
GGJstudios Avatar
190 months ago
I haven't been paying THAT close attention to this story, but I didn't realize that you had to be completely naive and gullible (no offense to any reading this that fell for it) to get nailed. I thought it happened more in the background. It looks like you pretty much have to open up the door to your computer and invite the hacker in and offer him or her a beer.

Am I understanding this right? You have to fairly pro-actively install this on your computer, it doesn't happen behind the scenes like Microshaft products do?
Yes, you're understanding it right. As is the case with 100% of all Mac OS X malware that exists in the wild (which is only a handful of trojans), nothing can infect your Mac unless you deliberately, intentionally, actively install it.
Good thing I use Firefox :)
That makes no difference, since this lame threat is not browser-specific.
OS X systems rarely have anti-viruses installed on them, and the Mac Defender was able to slip through OS X's rather dire malware detecting system and infect systems.
Antivirus software isn't required to defeat this threat. It can be easily thwarted by an informed, careful user.
I know OS X cannot get a true virus,
False. Mac OS X is not immune to viruses. There just aren't any in the wild.
Wow, you have to hit INSTALL to get infected? From how it was reported, it sounded like it was some sort of automatic thing. Sure, it doesn't require a password to install, but after seeing this I'd say you really DO need to be an idiot to install this.
This is the case with all malware that exists in the wild. None of it can affect Mac OS X unless the user actively installs it.
Score: 2 Votes (Like | Disagree)
the Rebel Avatar
190 months ago
Good thing I use Firefox :)

Why do people think that Firefox is immune to this? It is not.

The flaw is in the user.

Whether using Safari or Firefox, flawed users can easily install the MacDefender malware.
Score: 2 Votes (Like | Disagree)
milo Avatar
190 months ago
Wow, you have to hit INSTALL to get infected? From how it was reported, it sounded like it was some sort of automatic thing. Sure, it doesn't require a password to install, but after seeing this I'd say you really DO need to be an idiot to install this.

This isn't a virus or anything close to it, it's much more like a phishing email where the user is foolish enough to hand over the keys. It's great that Apple is putting in protection for this, but these sorts of threats will always be around and the solution is for people to have the common sense to not click INSTALL on an app that they didn't ask to download and that they've never heard of.

Honestly, seeing this video makes me feel like macs are MORE secure.

Although Apple could make the warning/remove interface less confusing. I'd almost say they should just block it automatically instead of giving the user a choice, and block the website as well.
Score: 2 Votes (Like | Disagree)

Popular Stories

iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
Intel Inside iPhone Feature

Apple's Return to Intel Rumored to Extend to iPhone

Friday December 5, 2025 10:08 am PST by
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone. In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
iPhone 14 Pro Dynamic Island

iPhone 18 Pro Leak Adds New Evidence for Under-Display Face ID

Monday December 8, 2025 4:54 am PST by
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker. According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Monday December 1, 2025 2:40 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
iOS 26

Apple Seeds Second iOS 26.2 Release Candidate to Developers and Public Beta Testers

Monday December 8, 2025 10:18 am PST by
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found. Registered developers and public beta testers can download the betas from the Settings app on...
Johny Srouji

Apple Chip Chief Johny Srouji Could Be Next to Go as Exodus Continues

Sunday December 7, 2025 10:41 am PST by
Apple's senior vice president of hardware technologies Johny Srouji could be the next leading executive to leave the company amid an alarming exodus of leading employees, Bloomberg's Mark Gurman reports. Srouji apparently recently told CEO Tim Cook that he is "seriously considering leaving" in the near future. He intends to join another company if he departs. Srouji leads Apple's chip design ...
Johny Srouji

Apple's Chipmaking Chief Johny Srouji Responds to Report About Him Potentially Leaving

Monday December 8, 2025 9:23 am PST by
Apple's chipmaking chief Johny Srouji has reportedly indicated that he plans to continue working for the company for the foreseeable future. "I love my team, and I love my job at Apple, and I don't plan on leaving anytime soon," said Srouji, in a memo obtained by Bloomberg's Mark Gurman. Here is Srouji's full memo, as shared by Bloomberg:I know you've been reading all kind of rumors and...
top stories 2025 12 04a

Top Stories: iOS 26.2 Coming Soon, Apple Execs Depart, and More

Saturday December 6, 2025 6:00 am PST by
You'd expect things to be starting to wind down for the holidays by now, but that doesn't seem to be the case yet in the world of Apple news, with Apple just about ready to release iOS 26.2 and other operating system updates to the public. There was also a flurry of news this week about Apple executive departures, some expected and some not so expected, while we also learned that Apple and...
ive and altman

Jony Ive's OpenAI Device Barred From Using 'io' Name

Friday December 5, 2025 6:22 am PST by
A U.S. appeals court has upheld a temporary restraining order that prevents OpenAI and Jony Ive's new hardware venture from using the name "io" for products similar to those planned by AI audio startup iyO, Bloomberg Law reports. iyO sued OpenAI earlier this year after the latter announced its partnership with Ive's new firm, arguing that OpenAI's planned "io" branding was too close to its...