When you forget your wallet ID/password/seed, you will have difficulty in recovering your own wallet, and this will also make it difficult for hackers to steal your money (through recovery options). This proves, that blockchain.com is trying to keep our account safe. And I'm sure, blockchain won't steal money from all users.

One important thing:
Maybe unconsciously, your device has been infiltrated by a malware or something. Nah, you (OP) also have to be aware of your own mistakes regarding the responsibilities of your device.

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Unfortunately, nobody can help you, and there is nothing we can do in this incident.