Unlike baseless rumors, the case of the leaker known as "Cyberleek" has concrete evidence behind it: a video posted by this person shows direct control over a playable version of GTA 6, not just claims.
The evidence that actually exists
In the video in question, the character Jason shoots at a wall and uses the resulting bullet holes to spell out the word "LEEK" — a demonstration that's only possible with active, real-time control of the game, not something easily faked with recycled archival footage. This is considered evidence that Cyberleek had (or has) access to at least part of a playable GTA 6 build.
There's also a dating clue: in one of the videos, the in-game radio plays "Sports Car" by Tate McRae, released in January 2025 — suggesting the build in the leaker's possession is relatively recent.
Who is Cyberleek
The real identity behind the pseudonym isn't publicly known. Technical clues (infrastructure hosted in Germany, publishing times, history on cybersecurity forums) suggest a possible origin in Germany or Switzerland, but that's not a confirmed identity.
The claims — this part should be treated with caution
The group behind the pseudonym claims to have a complete, playable build of the game, stored in multiple locations around the world, and threatens to release it publicly if the companies involved keep trying to identify them. This is a claim, not proof — the videos demonstrate access to a playable build, but don't prove access to the entire game or all the content that exists in the development version.
How to assess this kind of leak
The difference from other debunked viral clips is that here there's verifiable demonstration of real control over the game (the aim-and-write-with-bullet-holes action isn't replicable through ordinary video editing) — but that only proves possession of one partial build at a specific moment, not the full extent of what was compromised.
Sources: