3 ms·
Wait a couple of minutes or call back from a different phone. In the UK it may still be possible for an attacker to hold the line open after you hang up - and t
by Angostura 5y ago
Wait a couple of minutes or call back from a different phone. In the UK it may still be possible for an attacker to hold the line open after you hang up - and then simulate the dial tone.
- sebzim4500 5y agoI've heard this, but I don't understand it. Doesn't the UI feel completely different when it comes to placing a call versus using the keypad on an existing call? On android at least you have to explicitly show the keypad.
- Angostura 5y agoThe UI feels exactly the same if you are using a landline.
- theshrike79 5y agoHow? If I explicitly push the red button on my mobile phone, how does the line still stay open? I can understand this attack via land line, but who seriously has a land line in 2021? Even my 93 year old grandma has a mobile phone. (Albeit we did get her one that looks like a land line phone :D )
- stordoff 5y agoMy grandmother (80s) and her circle of friends all use landlines to communicate. Technically her's is a VoIP line since about six months ago, but it's designed as a drop in replacement (uses the same phones/numbers) so I wonder if there's a possibility the attack is still open. I also use a landline fairly often (mostly out of habit), and most companies only have my landline number as I don't want them contacting me while I'm out/busy. You're right that it's a dwindling number, but it's certainly not at zero yet.