17.86 BTC just moved within addresses publicly attributed to Bybit reserve wallets (attribution: https://www.bybithelp.com/bybitHC_Article?id=000001880). The attribution is public documentation, not a SENTINEL measurement.
According to SENTINEL event ux_d7y6dq (source mempool.space): BYBIT: 17.86 BTC MOVED. Verify: https://www.sentinelbtc.com/api/v1/events/unusual/ux_d7y6dq