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0

As pointed out by apsillers in the comment, what you are seeing are multiple TCP connections from the same IP address. If you group the source port numbers, you will be able to see that each connection is making a login attempt at a maximum rate of one per two seconds: 5967 Sep 7 11:50:20 .... sshd[13755]: Failed .... from 122.225.103.125 port 32582 ssh2 ...


0

Erasing or damaging the magnetic strip well stop it being read, this may prevent the card working in some ATMs and such. As pointed out card not present, contacted (this one is lethal) and using an old imprinter (if still allowed for use by merchant bank) are valid loopholes. However the EMV spec has a mode of doing a signature transaction without the PIN ...


1

I don't know about the magnetic strip. I guess you can. In my country almost all shops have chip-readers. And if the card doesn't work, report it broken and you get a new one. CSC / CVV But what about the card security code (CSC or CVV). With your credit card number, expiration date and CSC anyone can shop online. No need to steal a card! It's just a ...


0

Why not write "VOID" (or "CHIP & PIN ONLY") in big letters in the signature field on the card (and take a photo of it for your records)? That should only allow it to be used for chip and PIN transactions. If a merchant does allow it to be used for a signature transaction, then the merchant and bank are going to have a hard time justifying allowing the ...


7

Don't do this, it will not work in ATM machines in my experience. I've had to get a new debit card mailed in last month because there was a little scratch out of the magnetic strip, although I had not noticed and had used it for daily chip-only and wireless transactions. It wouldn't work in any (Dutch) ATM machine afterwards (I tried my own bank's and ...


1

If you live in an area where no ATM and other cash terminal needs the magnetic strip, you can use a strong magnet to scramble the magnet strip. I personally have done this using a recycled neodymium magnet out of a decommissioned hard drive. Note: never put your debit card in a microwave if you intend to use it afterwards.


-2

You should mark all of your cards "see photo ID" in the signature block on back. If a merchant accepts a fraudulent transaction after you've done this, it's entirely on them.


10

YES, but there is a big chance that an (internally chip-capable) ATM (depending on region) will reject the card! The most common 2 problems for an ATM (including chip-capable) to reject a card are: a dirty or scratched magstripe (as shown in spork's answer) an erased or mangled (=invalid) magstripe by exposure to magnets or EMP (they need to emit ...


14

Embossed letters are still present on CC to allow to quickly carbon-copy (literally) the card on paper. That's in the (very) old days, but still allowed today, and it will count as PRESENTIAL. Magnetic strip is still there because half of the CC readers still work that way. ATM and TPV outside USA and UE are still missing the chip reader, and even inside ...


28

As Phil stated, you can still use the card using its number (as you would do on-line). Also, some ATM machine won't accept the card if not able to read the magnetic strip. The best thing is to use a credit card: in that case you can block the payment and get a refund.


23

Yes, you can. On some places you can find a device called demagnetizer. Just run your card over it (or over a very strong magnet), and the magnetic track will be corrupted and you will only be able to use the chip part of the card.


0

How do I know whether a server is running mysql? There is no explicit method. You can try and look for clues (eg. port 3306 being open, although this is unlikely) or make an educated guess based on other elements of their stack which you might be able to discover (eg. MySQL is very popular with sites running PHP and Apache). But I need to know how ...


0

If the MySQL server isn't network-accessible (and it shouldn't be), the site isn't running software that is known to be MySQL-only, and you can't induce the website to generate detailed error messages, there is no way to tell that a given website is using MySQL as its database backend.



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