Samuel Groß

@5aelo

Working on Project Zero, Big Sleep, and V8 Security. Personal account. Also @saelo@chaos.social and saelo.bsky.social

Zürich, Switzerland phrack.org/author_saelo.h… Joined May 2013

529 Following 25K Followers 807 Posts

Latest posts 5

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Samuel Groß @5aelo Jan 9, 2020

I'm very excited to share my blogpost series (including PoC code) about a remote, interactionless iPhone exploit over iMessage: googleprojectzero.blogspot.com/2020/01/remote…

projectzero.google Remote iPhone Exploitation Part 1: Poking Memory via iMessage and CVE-2019-8641 Posted by Samuel Groß, Project ZeroIntroductionThis is the first blog post in a three-part series...

Samuel Groß @5aelo 3d

Fun coincidence: the blog post was published exactly ten years after phrack.org/issues/70/atta… (first appeared on Oct 27, 2016 in the Phrack paper feed). Still doing JS engines a decade later it seems 😅

phrack.org Attacking JavaScript Engines: A case study of JavaScriptCore and CVE-2016-4622 This article strives to give an introduction to the topic of JavaScript engine exploitation at the example of a specific vulnerability. The particular target will be JavaScriptCore, the engine inside...

Samuel Groß @5aelo 3d

Slides from the talk @mlippautz and I gave at the recent @offensive_con in Tokyo: saelo.github.io/presentations/…

Blog post for the Fuzzing vs. AI part: projectzero.google/2026/10/fuzzin…
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Samuel Groß @5aelo 3d

Slides from the talk @mlippautz and I gave at the recent @offensive_con in Tokyo: saelo.github.io/presentations/…

Blog post for the Fuzzing vs. AI part: projectzero.google/2026/10/fuzzin…

Samuel Groß @5aelo Oct 29

After a few years in beta, the V8 Sandbox is now considered a real security boundary! (Just announced at OffensiveCon Tokyo together with @mlippautz). This is less about reaching a particular software milestone than about two things:

Samuel Groß @5aelo Jul 23

Last week I did a livestreamed talk on browser security. In case you missed it and are interested, here are the slides: saelo.github.io/presentations/…
And the recording: youtu.be/maWnIKH3JQI?si…

Thanks @calif_io for hosting and the audience for listening and asking questions! :)