Defiant Inc / Wordfence Founder & CTO. Instrument pilot out of KAPA and KORS. Ham radio nerd (WT1J). I run a team of kickass engineers & cybersecurity experts.

Joined March 2007
1,087 Photos and videos
Pinned Tweet
5 Jul 2019
Look around you. The world is an amazing place full of awesome people.
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Mark Maunder retweeted

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Anthropic using the OpenAI 2019 playbook for GPT-2. “Due to our concerns about malicious applications of the technology, we are not releasing the trained model. As an experiment in responsible disclosure, we are instead releasing a much smaller model...” openai.com/index/better-lang…
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Woopsie, when you enter your tablet PIN on the NASA stream.
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An old classic needed an update.
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23 Nov 2025
OpenAI: The smart people left, so we don't know how to make models anymore. Sam: Recycle.
23 Nov 2025
guys what gpt-5 model should i use in cursor gpt-5.1 codex gpt-5.1 codex mini gpt 5.1 codex high gpt 5.1 codex fast gpt 5.1 codex high fast gpt 5.1 codex low gpt 5.1 codex low fast gpt 5.1 fast gpt 5.1 high gpt 5.1 high fast gpt 5.1 low gpt 5.1 low fast gpt 5 codex high gpt 5 codex fast gpt 5 codex high gpt 5 codex high fast gpt-5.1 gpt 5 codex gpt-5 gpt 5 fast gpt 5 medium gpt 5 medium fast gpt 5 high gpt 5 high fast gpt 5 low gpt 5 low fast gpt 5.1 codex mini high gpt 5.1 codex mini low gpt-5-mini gpt-5-nano gpt-5-pro thanks in advance
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Mark Maunder retweeted
4 Nov 2025
100,000 WordPress Sites Affected by Privilege Escalation Vulnerability in AI Engine WordPress Plugin wordfence.com/blog/2025/11/1… We urge users to update their sites with the latest patched version (3.1.4), and change the token in the settings page, as soon as possible.
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Mark Maunder retweeted
4 Nov 2025
How To Prevent XSS Attacks On WordPress Sites #xss #crosssitescripting #wordpress
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31 Oct 2025
lol
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15 Sep 2025
Given enough agents, all bugs are shallow.
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Mark Maunder retweeted
11 Sep 2025
🟦 Attention: #WordPress Users: Last week, there were: ✅ 191 Vulnerabilities Disclosed ✅ In 178 Wordpress Plugins And 7 Themes ✅ 52 Vulnerability Researchers That Contributed To Wordpress Security.👏 Review here to make sure you're protected: wordfence.com/blog/2025/09/w…
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Mark Maunder retweeted
9 Sep 2025
🟦 Attention #WordPress users: The Wordfence Threat Intelligence Team has discovered a new malware campaign that highlights the hidden risks associated with “nulled plugins”, or premium plugins that have been tampered with by third parties. Read more: wordfence.com/blog/2025/09/t…
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Mark Maunder retweeted
8 Sep 2025
🟦 Attention #WordPress Users: On August 17th, 2025, we received a submission for an authenticated PHP Object Injection vulnerability in Fluent Forms, a plugin with more than 600,000 active installations. Update to latest patched version (6.1.2) ASAP wordfence.com/blog/2025/09/6…
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20 Aug 2025
If a Ferrari LLM isn’t on the cards and all we get are Camrys, we’ll have to make the most of the Camrys.
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17 Aug 2025
Try “No that’s wrong” to get better quality results from AI, particularly with providers like OpenAI using back-end model switching.
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9 Aug 2025
Their Netscape 6 moment. Immediately deprecating 4o.

ALT Sportsnet Rogers GIF

8 Aug 2025
GPT-5 rollout updates: *We are going to double GPT-5 rate limits for ChatGPT Plus users as we finish rollout. *We will let Plus users choose to continue to use 4o. We will watch usage as we think about how long to offer legacy models for. *GPT-5 will seem smarter starting today. Yesterday, the autoswitcher broke and was out of commission for a chunk of the day, and the result was GPT-5 seemed way dumber. Also, we are making some interventions to how the decision boundary works that should help you get the right model more often. *We will make it more transparent about which model is answering a given query. *We will change the UI to make it easier to manually trigger thinking. *Rolling out to everyone is taking a bit longer. It’s a massive change at big scale. For example, our API traffic has about doubled over the past 24 hours… We will continue to work to get things stable and will keep listening to feedback. As we mentioned, we expected some bumpiness as we roll out so many things at once. But it was a little more bumpy than we hoped for!
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15 Jul 2025
You can't put an idea as compelling as AI back in the bottle. Once the knowledge of how to build a model, and what the reward is, permeated society, it became an inevitability. Protest all you want and frame it as a choice if you'd like, but the 8 billion people on this planet will simply go around you, much like the sick little boy that the zombies bypassed in World War Z. We've seen this with hand tools, the wheel, horses, steam engines and combustion engines, electricity, TCP/IP and now AI. It is not the manifestation of human preferences. It is instead the irreversible discovery by a species of what is possible in this lonely universe.
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2 Jul 2025
Napster had us believing briefly that free music was the new normal. LLMs trained on copyrighted IP have us believing that all knowing all capable LLMs are the new normal. Enjoy it while it lasts.
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29 May 2025
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Mark Maunder retweeted
21 May 2025
WooCommerce Store Owners: Be On The Lookout 👀 The Wordfence Threat Intelligence team recently uncovered a sophisticated formjacking malware targeting WooCommerce sites. Learn more about it and how to protect yourself 👇 wordfence.com/blog/2025/05/s…
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