Security researchers have discovered failings in เข้าเกมสล็อต two home electric car chargers.
The researchers were able to make the chargers switch on or off, remove the owner's access, and show how a hacker could get into a user's home network.
Most of the faults have now been fixed but owners are being told to update their apps and chargers, to be safe.
It comes as proposed new legislation on cyber-security for appliances - including chargers - is published.
Two home chargers, Wallbox and Project EV - both approved for sale in the UK by the Department for Transport - were found to be lacking adequate security when used with an accompanying app for smartphones.
Cyber-security researcher at Pen Test Partners, Vangelis Stykas, discovered the vulnerabilities.
"On Wallbox you could take full control of the charger, you could gain full access and remove the usual owner's access on the charger. You could stop them from charging their own vehicles, and provide free charging to an attacker's vehicle.
"Project EV had a really bad implementation on their back end. Their authentication where it existed was pretty primitive, so an attacker could easily escalate themselves to being an administrator and change the firmware of all the chargers."
Mr Stykas says changing the firmware - the programming that is built in to the hardware - would allow an attacker to permanently disable the charger, or use it to attack other chargers or servers.