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How do I prevent hackers from stealing my debit card information? (lemmy.world)
submitted 3 years ago by to c/technology@lemmy.world
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My wife and I keep getting our debit cards stolen online. We notice the charges and are able to dispute them and cancel our cards, but it sure is annoying.

We don't put our card information on suspicious websites. They're on well known websites like amazon and Facebook.

We ran out emails through a data breach checker and it found nothing.

I don't think there's any malware on our devices.

Any idea what could be happening and how to prevent it?

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[+] [S] -12 points 3 years ago (7 children)

Running a virus scan wouldn't be enough? I'd rather not factory reset everything.

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  • [–] 33 points 3 years ago (1 child)

    how do I fix this?

    probably like this.

    No :(

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  • [–] 23 points 3 years ago (3 children)

    To be fair, factory resets are a huge pain in the ass. Might as well try other things before busting out the nuclear option.

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  • [–] 9 points 3 years ago (2 children)

    Once you suspect a device is infected the only good option is the nuclear option. Anything else will not be guaranteed to 100% remove it, or really, anywhere near close to that, or even detect everything wrong in the first place or after attempted removal. And with a month long period between attacks that is a long time to wait and see to see if any other option might work.

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  • [–] 0 points 3 years ago*

    True, but I would confirm a device is compromised before nuking the OS, not just do it willy-nilly because maybe it could be. A better way to phrase what OP is asking is: what are some ways to troubleshoot this without making a ton of potentially unnecessary work for myself?

    ...to which I would say, run a netstat on any systems that you can, check those IP's against WHOIS and/or traceroute. Anything that traces to Eastern Europe, Russia, China, most of SEA is a red flag. Dig a little deeper with Wireshark or Glasswire to inspect some actual packets for suspicious content. I think there's a network logger that can trace the process using a given connection, but the name eludes me).

    Find your smoking gun, then torch the OS.

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  • [–] 28 points 3 years ago

    A virus scan can only scan for something it knows. If you have something new or esoteric on your device, the scanner may not pick it up.

    If you’re not using a reputable antivirus, also consider that the database is wildly out of date at best, or the “antivirus” is malicious on its own.

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  • [–] 7 points 3 years ago*

    No, it won't. If you value that situation enough to post here, you should also listen to the advices you're given.

    If you have an antivirus running and you're still being pwnd, a scan won't change anything.

    Format everything, computers, phones, everything with an Internet connection really. Yes, it's a pain, but also yes, it's necessary.

    Do it

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  • [–] 2 points 3 years ago*

    Running a virus scan wouldn't be enough

    No, those can be bypassed. If your kernel is what's infected, then it's probably not going to find anything either.

    Scanners are useful, but what they can look for is limited.

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  • [–] 1 point 3 years ago

    It's not like virus scanning is useless, but it varies depending on which scanning seevice you're using, and none of them are foolproof. The fact that you're still getting compromised suggests that your scanner(s) might be missing something.

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