Yes you're right I thought they were talking about an unknown Blockchain.com service. Because hackers would use this platform to hold "their" funds. But it's just some garbage talk in order to get more money IMO.
Recovery services like these are a SCAM. There Is no magic "hack" to get your coins back. Think about it - if they could hack anyone, why dont they just steal everyone's crypto instead of offering "recovery" service?That's a really good point!