with his account vs at his account

Some examples from the web:

• Way after Granados left for the bowling alley, consistent with his account that he never saw her.
• Well, she was the only one in the department with access to his account.
• He trusts me, not only with his corporate accounts but with his personal as well.
• VIPER75 is using a VPN, and he set up his account with a prepaid credit card.
• Phillip squared his account with me, and Everyone got their ring.
• Not to mention, he was sharing his accounts with a ghost IP.
• But now each of us has opened his account with Vadio.
• He's missing dinner with his family on account of us.
• We think Sam Garper is sharing his account with another user, presumably Norris Allen, and they're using the drafts folder to avoid a trail.
• Sounds like they confused his account with one of his father's, and he can't get the money.
• Our policy with getting his first account was not to tell him.
• Victim had an account with his girlfriend, all of $88.32.
• He admitted to buying CIA intel, using an account with his name on it.
• Therefore the kingdom of heaven is like a certain king who wanted to settle accounts with his servants.
• Because his winnings in the yellow zone still have to communicate with his bank account in the red zone.
• Now if he had repeated the question in its entirety, or if he had peppered his account with a little too much detail - and we're all really glad he didn't do that - he would have further discredited himself.
• He confirms someone accessed one of his accounts.
• His account manager accesses the recording, so there's never any direct link between Erickson and his secret accounts.
• It's not like we hacked his account.
• Every time Joe logged in, they accessed his account information.

Some examples from the web:

• What, you told him we were looking at his account?
• I mean, I looked at his accounts, and it looks like his holdings have been sold, and then everything was just dumped into tectonic pipelines.
• We also checked his account at JLP Bank Corp.
• I haven't found his present whereabouts yet, but I'm looking at his bank account.
• We estimate that the bomb in Hale's office and the blast at his house account for only a fraction of the missing explosives.
• The payer should be responsible for paying the MIF only in case of an R-transaction caused by insufficient funds on his account at the time the direct debit payment is due.
• enter into his tax warehouse and enter in his accounts at the end of their movement all excise goods moving under a duty suspension arrangement, except where Article 17(2) applies;
• He confirms someone accessed one of his accounts.
• His account manager accesses the recording, so there's never any direct link between Erickson and his secret accounts.
• It's not like we hacked his account.
• Every time Joe logged in, they accessed his account information.
• Funny thing is it's still in his account.
• Some discrepancies in his account of their dealings set off some red flags.
• 70K deposited into his account as of three days ago.
• The sanctions in the UK have frozen his accounts.
• There were large cash withdrawals from his accounts.
• Allison's dad woke up to an email this morning from Uber saying she booked a car in his account last night.
• My husband is dead, but I would know his account.
• There was a huge deposit into his account, too.
• You can plaster his face everywhere, freeze his accounts.