Scammed by a Hacked email account

[hkp57]

Recently the builder I have used for many years did some work for me, he sent the invoice by email as normal.

But during that night I got another email from him asking to use his other account to pay into, to which I did.

Turns out his email has been hacked and another of his customers along with me paid into this bogus account.

Who is liable assuming the money can not be recovered through the Banks / Police. Do I have to pay him again due to paying into a false account or does the builder have to suck it up as it was his mail account hacked.

To expand the email I got from his account was very convincing using all the same type of language and came from his normal email address we have used to do business on for years!

[hkp57]

We already checked and the email with instructions to me did come from the builders email address but from an IP address in Slough.

The small family builder is based in central Scotland.

The police and banks are investigating.