Richard Bejtlich

Richard Bejtlich✓

Mastodon @taosecurity@infosec.exchange
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📣Sponsored postOne disclosed post (toot) with your link and message. $18→ 🧵Sponsored threadA multi-post explainer or story — the fediverse rewards dept… $45→ 📦Product seeding / honest reviewSend me your product — I post a disclosed, honest take. Auth… $23→ 📌Pinned sponsored postA disclosed post pinned to the top of my profile for the mon… $54/mo→ 🔗Profile link (bio field)Your link in one of my profile metadata fields for the month… $27/mo→ 🔁Boost packageI boost (repost) your account's toots through the month — di… $36/mo→ 🏛️Instance / community sponsorshipSponsor the server I run — a sponsor line in the About/rules… $45/mo→ 🤝Mutual boost collabWe boost each other across instances — a value swap between … Swap→

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Followers
3K
Account age
3 yrs

Known for

On average, the FreeBSD security team releases about 2 security advisories per month. AI has changed this. In April, the project released 8 advisories, with 6 powered by AI. In May, the count decreased slightly to 7. Today I took a look at the FreeBSD Security Advisory page to check the latest adv12 views On average, the FreeBSD security team releases about 2 security advisories per month. AI has changed this. In April, the project released 8 advisories, with 6 powered by AI. In May, the count decreased slightly to 7. Today I took a look at the FreeBSD Security Advisory page to check the latest adv "Those two words which the writer set together have produced an effect which will never die, as long as [people] can read with understanding." - Shelby Foote, The Correspondence of Shelby Foote and Walker Percy7 views "Those two words which the writer set together have produced an effect which will never die, as long as [people] can read with understanding." - Shelby Foote, The Correspondence of Shelby Foote and Walker Percy I wrote a blog post about my new book. The book is free BTW, no email required. Blog post is here: https://corelight.com/blog/ndr-essentials-book6 views I wrote a blog post about my new book. The book is free BTW, no email required. Blog post is here: https://corelight.com/blog/ndr-essentials-book Episode 17 of the Corelight podcast is live. I speak with Ricky Lin about how he uses Zeek and Corelight to monitor his home network, and how networking has changed over the last 30 years. https://www.youtube.com/playlist?list=PLBKbF72bCp2UtefR6_GhrKATP3tVD7Vev https://open.spotify.com/show/2L2bkmbx2 views Episode 17 of the Corelight podcast is live. I speak with Ricky Lin about how he uses Zeek and Corelight to monitor his home network, and how networking has changed over the last 30 years. https://www.youtube.com/playlist?list=PLBKbF72bCp2UtefR6_GhrKATP3tVD7Vev https://open.spotify.com/show/2L2bkmbx

📊 Post engagement

4
Avg engagement / post
0.1%
Engagement vs followers
Nov 2022
On Mastodon since

🔥 Top post: On average, the FreeBSD security team releases about 2 security · 12 likes + reposts

📊 Activity & format

Posting cadence
0.95 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly images
Recent: 0 text · 12 image · 0 video.

Recent posts

View on Mastodon ↗
🔥 Top post On average, the FreeBSD security team releases about 2 security advisories per month. AI has changed this. In April, the project released 8 advisories, with 6 powered by AI. In May, the count decreased slightly to 7. Today I took a look at the FreeBSD Security Advisory page to… ★ 12
TIL there is a certification called Cisco Cyber Ops that uses such an old version of Security Onion that it is based on Sguil 0.9.0 (2014), Elsa (!), and other generally long-retired code! TBF Sguil offers more capability than many modern … ★ 1 Episode 19 of the Corelight podcast is live. I speak with our co-founder Greg Bell about our Provably Better Data initiative. Our research showed that you need high quality network evidence to perform well on capture the flag contests. The… I wrote a blog post about my new book. The book is free BTW, no email required. Blog post is here: https://corelight.com/blog/ndr-essentials-book ★ 6 Episode 18 of the Corelight podcast is live. I speak with Senior Sales Engineers Adam Donadeoto and Nico Roosenboom about their experiences at Locked Shields, the world’s largest international live-fire cyber defense exercise. We dive into… Episode 17 of the Corelight podcast is live. I speak with Ricky Lin about how he uses Zeek and Corelight to monitor his home network, and how networking has changed over the last 30 years. https://www.youtube.com/playlist?list=PLBKbF72bCp2… ★ 2 I enjoyed hearing my friends Kevin Mandia and Ron Bushar share their perspectives at the Northern Virginia Technology Council (NVTC) yesterday. We had a mini-Mandiant reunion. ★ 1 Episode 16 of the Corelight podcast is live. Dave Getman and I discuss the evolution of Corelight Investigator, the role of agentic triage in security operations, and how Corelight brings receipts to intrusion analysis. https://www.youtube… Episode 15 of the Corelight podcast is live. Greg Bell and I talk about Mythos and AI-accelerated vulnerability discovery and remediation. This was one of my favorite discussions thus far! https://www.youtube.com/playlist?list=PLBKbF72bCp… ★ 2 Episode 14 of the Corelight podcast is live. I speak with Vince Stoffer on post-quantum cryptography. We discuss how network security monitoring can help defensive teams understand and manage this technology. https://www.youtube.com/playli… ★ 2 Episode 13 of the Corelight podcast is live. I speak with our VP of research, Ali Islam. We discuss how a research lab functions within a modern security company. Ali has advice for anyone who wants to get into this fun technical field. ht… ★ 1 "Those two words which the writer set together have produced an effect which will never die, as long as [people] can read with understanding." - Shelby Foote, The Correspondence of Shelby Foote and Walker Percy ★ 7

🐘 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.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
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 4 views per post.
📤Posts about 1× per week.

🛡️ Audience credibility

52/100 Fair
  • Est. 76% real, active audience · Medium fake-follower risk.
  • Low engagement (~0.1% of followers engage each post) — a sign of an inflated or inactive audience.
  • Verified account.
  • Established account (3+ years old).
Est. authentic audience
76%
Fake-follower risk
Medium
Data confidence
Medium

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

About

I was a captain in the United States Air Force who formally trained as an intelligence officer. I later worked in information warfare. I promoted the concept that "prevention eventually fails" in my first book (2004) and developed tactics, operations, and strategy to detect and respond to nation-state and criminal computer intrusions. I created the GE-CIRT and was Mandiant's first CISO. I currently advocate #NetworkSecurityMonitoring for @corelight. My latest books are here #ad https://amzn.to/3B2AcMc

📸 Gallery

TIL there is a certification called Cisco Cyber Ops that uses such an old version of Security Onion that it is based on Sguil 0.9.0 (2014), Elsa (!), and other generally long-retired code! TBF Sguil offers more capability than many modern tools, but it would be worth updating to something actively On average, the FreeBSD security team releases about 2 security advisories per month. AI has changed this. In April, the project released 8 advisories, with 6 powered by AI. In May, the count decreased slightly to 7. Today I took a look at the FreeBSD Security Advisory page to check the latest adv Episode 19 of the Corelight podcast is live. I speak with our co-founder Greg Bell about our Provably Better Data initiative. Our research showed that you need high quality network evidence to perform well on capture the flag contests. There's a "cap on inference" that causes lesser quality data lik I wrote a blog post about my new book. The book is free BTW, no email required. Blog post is here: https://corelight.com/blog/ndr-essentials-book Episode 18 of the Corelight podcast is live. I speak with Senior Sales Engineers Adam Donadeoto and Nico Roosenboom about their experiences at Locked Shields, the world’s largest international live-fire cyber defense exercise. We dive into the friction of defending a massive virtualized network agai Episode 17 of the Corelight podcast is live. I speak with Ricky Lin about how he uses Zeek and Corelight to monitor his home network, and how networking has changed over the last 30 years. https://www.youtube.com/playlist?list=PLBKbF72bCp2UtefR6_GhrKATP3tVD7Vev https://open.spotify.com/show/2L2bkmbx I enjoyed hearing my friends Kevin Mandia and Ron Bushar share their perspectives at the Northern Virginia Technology Council (NVTC) yesterday. We had a mini-Mandiant reunion. Episode 16 of the Corelight podcast is live. Dave Getman and I discuss the evolution of Corelight Investigator, the role of agentic triage in security operations, and how Corelight brings receipts to intrusion analysis. https://www.youtube.com/playlist?list=PLBKbF72bCp2UtefR6_GhrKATP3tVD7Vev https:/

🔀 Audience overlap

Estimated

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

Giulio Mattioli Giulio Mattioli 15% Modrinth :ferris: Modrinth :ferris: 15% rOpenSci rOpenSci 15% GameFromScratch GameFromScratch 15% Sage Sage 12% Debbie Goldsmith 🏳️‍⚧️🏳️‍🌈 Debbie Goldsmith 🏳️‍⚧️🏳️‍🌈 10%

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