Odaily Planet Daily News Coinbase executive Conor Grogan stated on social media that the recent transfer of $8 billion worth of BTC by a 'dormant ancient whale' that had been inactive for 14 years may involve the possibility of a private key being stolen or leaked. Conor discovered that one hour before the large-scale transfer of BTC assets from the whale wallet, one of the wallets conducted a test transaction of Bitcoin Cash (BCH) and then promptly withdrew all BCH. Conor believes this behavior pattern is unusual, as other BCH wallets were not utilized, and BCH is generally less monitored by whale tracking services. This could be a low-profile way to test the private key, and he speculates that these wallets are unlikely to be exchange wallets. Conor stated that although this is merely speculation, if true, it could be the largest digital asset theft case in human history.