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MacSync

macOS infostealer malware, also tracked as Mac.c, that steals credentials, browser data and crypto wallets, spread via fake downloads and ClickFix lures.

Known aliases

  • Mac.c
  • MacSync stealer

Current stories

securityConfirmed5 publishers

AmnesiaStealer trades smash-and-grab for a live seat in the victim's browser

Jamf Threat Labs says the Rust macOS stealer pastes itself in via Terminal, fakes an Installer password prompt, mutes the speakers, then hands the operator a headless clone of your logged-in profile.

Perspective Coverage

5 publishers
Builder
Builder 30%
Operator
Operator 65%
Investor
Investor 5%

Reality

Evidence68
Adoption
Not scored
Hype gap+10
Incentives40
Confidence70
securityConfirmed5 publishers

A hijacked HBO Max Reddit account pushed 108 ClickFix ads to Windows and macOS users

Hudson Rock and ADAMnetworks link the ads to an operation they call PasteSwitch, which hands Windows and macOS visitors different paste-this-command lures and swaps payloads on the backend depending on who arrives.

Perspective Coverage

5 publishers
Builder
Builder 29%
Operator
Operator 65%
Investor
Investor 6%

Reality

Evidence74
Adoption
Not scored
Hype gap+8
Incentives50
Confidence72
securityOne report1 publisher

MacSync now pipes a public iCloud calendar into zsh to stage its Mac payload

Kaspersky says the macOS stealer it first tracked as Mac.c has swapped script droppers for FAT Mach-O binaries in a chain found in September 2026, and its loader now reads shell commands out of a public iCloud calendar file.

Publishers:securelist.com

Reality

Evidence68
Adoption32
Hype gap0
Incentives58
Confidence58
buildOne report1 publisher

Three malware campaigns stage their lure pages on Claude and ChatGPT share links

Huntress and BleepingComputer describe sponsored ads that land on a real Claude Artifact page. The download link and the pasted curl command both reach elsewhere, so the trusted hostname never serves the payload.

Publishers:dev.to

Reality

Evidence45
Adoption35
Hype gap+15
Incentives55
Confidence45
securityOne report1 publisher

FakeAgent delivered SectopRAT to more than 29 organisations from a page hosted on claude.ai

Huntress tracked nine months of malware campaigns run through shipped AI sharing features. Public Claude Artifacts, claude.ai/share links and indexable ChatGPT and Grok conversations all put the lure on a domain the victim already trusts.

Reality

Evidence45
Adoption38
Hype gap+12
Incentives85
Confidence50
leadershipOne report1 publisher

Fake macOS troubleshooting posts route infostealers past Gatekeeper

Microsoft says the campaign now delivers its payload through a command pasted into Terminal rather than a .dmg installer. The review step that mattered was tied to that older delivery method, and the attackers no longer need it.

Publishers:microsoft.com

Reality

Evidence64
Adoption52
Hype gap+8
Incentives68
Confidence60