Excited to announce that @cotoolai has raised a $7.4M seed round led by @a16z to build the agent operating system for security teams.
Threat actors now scale with tokens. Campaigns that used to require a coordinated team can be run by a small group with the right model harness. Defense has been absorbing that hit with the same playbook and the same headcount. We built Cotool to make defense compound in the same way.
Grateful to the team at @a16z, @ycombinator, @WndrCoLLC, @homebrew, and our angels from Okta, Ramp, Cloudflare, and others who've lived this problem firsthand.
If you’re a security practitioner looking for more leverage in the AI age, come see how Cotool can help!
Allbirds $BIRD to sell its brand and footwear assets, rename itself NewBird AI, and use a new $50M convertible financing facility to buy high-performance GPUs to pivot into AI compute infrastructure.
It's wedding szn for me and I must say the reception dress codes are starting to look a lot more like heroku deployments than actual dress codes.
Yeah it's "fizzbar-southern-franch-chic" so just wear a linen suit
the npm supply chain is ablaze, and I hate ambulance chasers, but honestly stoked that I could log into my own product (@cotoolai) last night and already have an exposure check waiting for me.
Big shout out to @feross and @SocketSecurity on the timely disclosure here!
Someone tell my mom I made it on camera! All jokes aside, working with the @elise_ai team has been an absolute treat. They're doing some awesome stuff over there (and they're hiring across all roles)
New case study alert! Learn more about how @elise_ai is leveraging Cotool to enable their rapid scale.
Across detection, response, and operating 24/7, Cotool agents have enabled eliseAI to scale with flexibility and control across all security functions.
Sharing some more @cotoolai research: NYU CTF Bench.
81 real CSAW CTF challenges across reversing, forensics, and misc. tasks to test end-to-end cyber capability.
Claude Opus 4.6 led at 79%, GPT-5.2 hit 63%, and Gemini 3.0 Flash / GPT stood out on cost.