Almost every messenger is vulnerable to this attack. This is also how Tor users can ger deanonymised.
There are solutions to this problem, but they involve a significantly worse user experience combined with sending traffic back and forth even when there aren’t any messages to exchange, or message delivery to take very long.
The underlying problem has been known for very long, but there’s no easy fix for it. Few messenger services are going to spend the extra bandwidth costs on dummy traffic to obfuscate messenge exhange and users will first and foremost notice that their phones are draining like crazy because of all the dummy notifications waking up their device’s SoC.
Almost every messenger is vulnerable to this attack. This is also how Tor users can ger deanonymised.
There are solutions to this problem, but they involve a significantly worse user experience combined with sending traffic back and forth even when there aren’t any messages to exchange, or message delivery to take very long.
The underlying problem has been known for very long, but there’s no easy fix for it. Few messenger services are going to spend the extra bandwidth costs on dummy traffic to obfuscate messenge exhange and users will first and foremost notice that their phones are draining like crazy because of all the dummy notifications waking up their device’s SoC.