Head of Safety at @X.

San Francisco, CA
Michael O'Herlihy retweeted
Last week, @X sued several people who abused Creator Revenue Sharing by operating a coordinated network of accounts, posting inauthentic content to manipulate engagement, and using multiple bank accounts to hide their scheme. We do not tolerate fraudulent behavior on X -- and will act forcefully to protect our platform and the earnings of genuine creators. You can read our lawsuit here: transparency.x.com/assets/le…
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Michael O'Herlihy retweeted
We take seriously our responsibility to protect minors. X has zero tolerance for CSAM, including AI-generated CSAM. As an industry leader, we actively report and block users who violate our Terms of Service, which absolutely prohibit all forms of child sexual exploitation, including posting or engaging with child sexual abuse material. So far this year, we have reported 1.3 million cases to the National Center for Missing and Exploited Children. Additionally, we employ industry-leading tools and processes to protect minors, including: - We scan media against known-CSAM hash libraries (including hashes from NCMEC and partners such as IWF) using industry tools such as PhotoDNA alongside proprietary detection. We run models at post-creation time (LLMs and custom classifiers, legal/policy-reviewed) and conduct manual Child Safety operations reviews to catch CSE/CSAM that isn’t already in a hash set. We also run proactive keyword and media sweeps, plus heuristics that are partially or fully automated, when signals indicate possible CSAM. - Apparent CSAM leads to removal, and we have permanently suspended over 780,000 users in the past month alone, with ban-evasion controls. Whenever we become aware of apparent CSAM (including AI-generated CSAM), we report it to NCMEC. AI-generated CSAM is enforced under the same Child Sexual Exploitation policy as non-generative CSAM. We also continuously improve hash coverage, classifiers, and review workflows because this threat is ever evolving and highly adversarial. - We have also brought and will, if necessary, continue to bring lawsuits against users who have intentionally circumvented safeguards to generate this despicable content. In the first half of 2026 alone, X Corp made more than 1.3 million reports to the National Center for Missing and Exploited Children, resulting at least 543 arrests - Finally, we are an active member of the Tech Coalition, an alliance of global tech companies who are working together to combat child sexual exploitation and abuse online. Tech Coalition is an invaluable resource to understand the best practices and new approaches used across the industry to detect and prevent the sharing of CSAM. It allows member companies to share best practices, challenges and new insights that ensure that we are up-to-date when it comes to trends related to these high severity violations.
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Glad to be back at X as Head of Safety. Focus: keep people safe across our products and AI systems, protect free expression, and make Safety more transparent.
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Michael O'Herlihy retweeted
Long-time admirer of the Cursor team, few have done more to bring AI coding to the world. Excited to continue to partner with them.
Cursor has been a trusted partner of Anthropic since Sonnet 3.5. We’ll continue to increase compute to support Claude models in Cursor and are excited for what comes next with them at SpaceX.
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Michael O'Herlihy retweeted
Cursor has been a trusted partner of Anthropic since Sonnet 3.5. We’ll continue to increase compute to support Claude models in Cursor and are excited for what comes next with them at SpaceX.
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Michael O'Herlihy retweeted
Cursor is now part of @SpaceX. Today, we have officially closed our acquisition. We will join the @SpaceXAI team to help make Grok the world's most useful AI and improve Grok Build, Grok Bot, Grok API, Cursor, and more. SpaceX has built some of the most inspiring and impressive technology in the world, and we’re grateful for the opportunity to become part of such a special company. Onwards.
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Earthquake in SF!
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I asked @openclaw for some song recommendations. Instead of giving me a list, it replied: "Done. Kitchen Sonos is playing “Hot N Cold (Rock Version)” at volume 35. That should do the job. Go be dangerous."
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It was kind of the @icc to have some exhibition games to surround the two game India versus Pakistan series. #ExpandingTheGame
ICC have revamped the format of its marquee men's events to enhance competitive structure and elevate sporting standards. icc-cricket.com/news/icc-rev…
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Was disappointed by the reaction of @prendergastorla to being given out … then I watched the replay and realize it was an under reaction. Shocking decision. #IreVWI
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Michael O'Herlihy retweeted
Me whenever I try to put on socks without warming up first:
The most disappointing fight in the history of the sport Looks like Conor McGregor immediately blew out his knee vs Max Holloway
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Huge upset in the household chart: @katyperry way out in front with 72 plays, @taylorswift13 in pursuit. I may have to put my finger on the scale and hide certain songs, or people might hear me Roar. #DIYJukeBox
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Does Vaibhav Sooryavanshi have any long lost Irish grandparents? We would keep him in the team and let him do his magic.
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Sooryavanchi is playing a different sport. It looks like he is playing stick cricket. It’s incredible. #EngVInd
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An incredible performance by Cape Verde. Such an inspirational story, and a highlight of the World Cup. #FifaWorldCup
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That is the best goal and best celebration I have ever seen. #TeamCapeVerde #FifaWorldCup That celebration gave me flashbacks to when Felipe Contepomi scored a try, and jumped the boards found a seat and started applauding himself.
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We identify as the world champions. #IrelandCricket @cricketireland
Great to see some 🇮🇪 fans in the stands during the Unicorns v Freedom @APSportsNews_ with the 🎙️ #MLC2026 #MajorLeagueCricket
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.@CricketBadge is a mini celebrity here!
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Major League Cricket in Oakland. Prematch and the atmosphere is electric. Can’t wait for the action!
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A home T20 series win for @cricketireland against @BCCI. Incredible accomplishment. I think Ireland have earned an invite for a series rematch in India. #IreVInd
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