"Did you create another account with the same email or a different one?"
I opened the account with the same email. I believe it must not be the issue if you open account with the email because someone's email is public info.
"AFAIK, regardless of the security settings, the "real" blockchain.com wallet always sends an email to authorize every single login attempt and if you didn't get any, then perhaps you were using/accessing a fake version of that wallet + that explains how they were able to easily transfer your funds into their wallets."
No, I did get an email to authorize my every single login attempt. That's the catch. I got it every time I was accessing my account.
"I'm not trying to defend Blockchain.com's wallet [I wouldn't recommend them since it's not a safe place to store funds] but I think it's not fair to blame them for this [if it was indeed a phishing scam of some sort]."
I could agree with you if I was a victim of phishing scam. But I do not believe that's the case, because I was getting notification (via email and/or mobile) every time I was accessing my wallet. So, it must have been the real Blockchain's wallet.
Of course, I'm not saying that Blockchain is 100% guilty, but believe that had some part in it, because someone transferred bitcoins from my wallet without notifying me. The rest of the blame is on my back, on my naivety.
Anyway, thank you for your support and for sharing the info about a company like Chainalysis.