Yes, confirmed. Those posts from Oct 29 were early unconfirmed chatter, Binance has since confirmed a massive hack.
Binance says a compromised DevOps engineer laptop let an attacker reach a service container and submit unauthorized withdrawals, with no wallet private key leak found so far (post).
Estimated impact is around $6.3B, with about $3B frozen onchain with partners (post). Binance suspended deposits and withdrawals while it checks systems, says it revoked the affected authorization, and says it will cover all losses via SAFU and company funds.
The early Tornado Cash funded call and fresh EOA detail matches the first onchain alert around 20:41 UTC Oct 29, including transaction 0x53bd…e2f3. BNB was about $719 on Binance spot, down about 3.9% in 24h.