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Mastodon @agreenberg@infosec.exchange

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Followers

10.2K

Account age

3 yrs

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Known for

UCSD warned KARR's manufacturer, who has now pushed out a fix. The complication: KARR is typically installed by dealers to prevent theft from their lots. If a buyer doesn't want it as an add-on, the dealer still leaves it wired in under the hood anyway in a "deactivated" state.

16 views UCSD warned KARR's manufacturer, who has now pushed out a fix. The complication: KARR is typically installed by dealers to prevent theft from their lots. If a buyer doesn't want it as an add-on, the dealer still leaves it wired in under the hood anyway in a "deactivated" state.

As a result, the device is in over 2 million cars, about half of whose owners told dealers they didn't want it, by UCSD's estimate. They may not have any idea it's inside their vehicle.
Yet it's beaconing and can be "activated" instantly by a hacker and hijacked for theft or chaotic effects.

8 views As a result, the device is in over 2 million cars, about half of whose owners told dealers they didn't want it, by UCSD's estimate. They may not have any idea it's inside their vehicle. Yet it's beaconing and can be "activated" instantly by a hacker and hijacked for theft or chaotic effects.

📊 Post engagement

📊 Activity & format

Posting cadence

1.7 / week

A lower-frequency account — each post lands with more weight.

Content mix

Mostly text

Recent: 10 text · 2 image · 0 video.

Follower / following

57×

Follows 180 back. A strong ratio — an audience that follows them, not a follow-for-follow network.

Recent posts

View on Mastodon ↗

🔥 Top post A device inside millions of cars has a security flaw that lets hackers unlock, track, even paralyze vehicles. There's a patch. The problem? Half of car owners who have the device installed didn't ask for it, and may not even know about it. Thread👇 https://www.wired.com/story/a-d… ★ 81

Scam researchers told a Claude agent and human "scammers" to text test subjects and build a relationship. After a week, subjects said they trusted the AI more than the human and almost half were willing to install an app at its request. Al… ★ 14 You can also read our full story here: https://www.wired.com/story/a-device-hidden-in-cars-across-the-us-leaves-them-vulnerable-to-hacking-and-paralysis-patch-it-now/ Please check your car—particularly if it was ever sold in Southern Calif… ★ 46 In our latest episode of WIRED's Hacklab video series, UCSD's researchers talk through their discovery—which they'll present at Defcon next month—how to check if you have KARR in your car, and how to install the security update to fix its … ★ 15

As a result, the device is in over 2 million cars, about half of whose owners told dealers they didn't want it, by UCSD's estimate. They may not have any idea it's inside their vehicle. Yet it's beaconing and can be "activated" instantly b… ★ 8

UCSD warned KARR's manufacturer, who has now pushed out a fix. The complication: KARR is typically installed by dealers to prevent theft from their lots. If a buyer doesn't want it as an add-on, the dealer still leaves it wired in under th… ★ 16 Researchers at UCSD found the KARR car alarm has vulnerabilities that let a hacker in Bluetooth range unlock a car, immobilize it, or trigger horns and lights. They can even hack a parking lot full of vehicles—or stealthily steal one—as w… ★ 26 San Francisco police accidentally livestreamed their drones’ video and data on the open web. The hours of footage—including several apparent arrests—should never have been made public, but now offer a revelatory glimpse of modern aerial ur… ★ 76 I sat in on a close-door war game where the insurance industry simulated a cyberattack against US water utilities by Volt Typhoon, Chinese state hackers who have been penetrating US critical infrastructure since at least 2023. The results … ★ 45 A security researcher using Claude Opus 4.7 found the AI tool could independently code an exploit to hack into Front Gate Tickets, the ticketing platform for almost every major US music festival from Lollapalooza to Bonnaroo. He could then… ★ 7 Red Bull, the scam compound whistleblower and human trafficking survivor whose story I told earlier this year, is struggling to rebuild his life in a new country. He desperately needs tuition funds to keep his student visa, avoid deportati… ★ 20 Developers from Signal (including its protocol's co-creator) along with Microsoft and Harvard unveil Encrypted Spaces, an open-source codebase for a new generation of private collaboration apps. Think Slack, Discord, Google Docs, all end-t… ★ 44

🐘 Community & instance

Home server

infosec.exchange

A cybersecurity & infosec server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.

On Mastodon since

Nov 2022

Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.

💡 Facts

🗓️Joined Mastodon in 2022 — 3 years ago.

👁️Averages 33 views per post.

📤Posts about 1.7× per week.

🏅Earned the 10K Followers for passing 10K followers.

🕵️ Fake follower check

Estimated

72/100

Good Credibility score

94%

Real Real audience

Low Fake-follower risk

High Data confidence

Est. 94% real, active audience · Low fake-follower risk.
Engagement (~0.3% of followers engage each post) is around typical for Mastodon.
Organic base — far more followers than accounts it follows.
Established account (3+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

💚 Brand affinity

Estimated

Brands Andy Greenberg's audience is most likely to respond to — from detected sponsorships in this niche.

Gofundme

About

Writer for WIRED. Author of SANDWORM. New book, TRACERS IN THE DARK: The Global Hunt for the Crime Lords of Cryptocurrency, out now.

🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

Frankie ✅ 18%

Scott Stedman 18%

Frankie ✅ 15%

Nolan Lawson 14%

Aus.Social's Honking Admin 11%

Kit Yates 11%

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Mastodon ＋

Frankie ✅ ✓

@some_emo_chick@cliff.social

10.2K Followers

Mastodon ＋

Frankie ✅ ✓

@some_emo_chick@mastodon.social

10.2K Followers

Mastodon ＋

Aus.Social's Honking Admin

@aussocialadmin@aus.social

@scottmstedman@journa.host

🏆 Awards & milestones

🟣10K Followers10K followers

Next: 🟪 100K Followers — 89.8K followers to go

🛡️ Brand safety

✅Brand-safe84/100

✓ Established channel (3+ yrs)

A heuristic signal for brands from public data & recent titles — not a moderation verdict.

Details

PlatformMastodon

JoinedNov 2022 · 3 yrs

Followers10,198

Updated2 months ago

🤝 Brands they've worked with

✓ From their content

Sponsors Andy Greenberg has actually partnered with — detected in their videos. Proof they take on & deliver brand deals.

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How many followers does Andy Greenberg have?

Andy Greenberg has 10,198 followers on Mastodon.

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Known for

📊 Post engagement

📊 Activity & format

Recent posts

🐘 Community & instance

💡 Facts

🕵️ Fake follower check

💚 Brand affinity

About

🔀 Audience overlap

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