Questions tagged [signal]
A protocol (as well as an app implementing it) for end-to-end encrypted instant messaging.
37 questions
4votes
3answers
417views
Signal: Does anyone *know* if the Yemen group chat was insecure?
I keep seeing articles like this one (It's on Daily Mail Plus, but I assume you folks know how to shut off scripts to read a 'news' article). The allegation is that Signal is a highly insecure place ...
- 169
2votes
0answers
219views
Is SimpleX more secure than Signal? [closed]
SimpleX (whitepaper; audited by Trail of Bits) claims to be The first messenger without user IDs Other apps have user IDs: Signal, Matrix, Session, Briar, Jami, Cwtch, etc. SimpleX does not, not even ...
- 1,857
35votes
4answers
8kviews
Why do apps such as the DuckDuckGo browser or Signal seem to try to protect my own data from me?
This is a general pattern that occurs in various security- and privacy-conscious applications... The DuckDuckGo browser, for example, won't let me show my browsing history. It does seem to store it, ...
- 6,841
5votes
1answer
2kviews
How does Signal protect data on the device from unauthorized access?
Signal has moved to always store all data AES-encrypted on the device a few years ago. So, it is reasonable to assume that reading conversation data from a device at rest should be impossible. However,...
- 647
1vote
0answers
84views
Minimizing trust assumptions in Messaging Protocols
As I was listening to an interview yesterday, the journalist claimed that his Signal communications were being spied on by the NSA. Whether to believe him or not is subjective. Still, it is an ...
0votes
0answers
203views
What NOT to do if I am recovering messages from Signal messenger on damaged iPhone
I have an iPhone SE 2020 running ios 16 that got water damaged and now doesn't even switch on. It has some Signal messenger messages on it that I want to recover. Signal ios app version was up to date ...
- 101
2votes
3answers
1kviews
Does Signal store mobile phone numbers server-side in plain text?
Does Signal (the company) keep or ever have mobile phone numbers in plaintext (on any form of server-side storage)? I searched the web and couldn't find an official statement/documentation/answer/code/...
- 124
0votes
0answers
139views
How does Signal protocol work? Message queue is somehow disappeared after requested?
Signal claims they only know when users created their account and when users last connected to the server, but what about the message queue waiting for users devices to come online? I don't know how ...
- 173
1vote
0answers
22views
How do end-to-end encryption (E2EE) IM apps implementing push notifications? [duplicate]
Say WhatsApp and Signal on Android devices, how do they keep the E2EE not be broken? Some answers claimed that WhatsApp uses VoIP background mode on iOS to make the push notification invoke the app to ...
1vote
2answers
10kviews
Signal — Can message previews of the messages you send be disabled in the chats’ list of your addressee?
Premise Signal is armed with measures to instil a sense of privacy in users by preventing undisclosed screenshotting and screencasting message threads, and by enabling the sender to set their text, ...
0votes
0answers
246views
How long does Signal keep the keys for out-of-order messages?
I was reading the Signal protocol on how it handles out-of-order messages. What if those messages never arrived, does Signal keep the keys forever or are the keys deleted as soon as a new session is ...
- 175
7votes
2answers
720views
In a synchronous environment, does Signal offer any security benefits that can’t be achieved with a modern version of TLS?
The Signal protocol utilizes the double ratchet algorithm to achieve end-to-end encryption with forward secrecy and future secrecy (aka break-in recovery). Forward secrecy ensures that if any of the ...
- 361
0votes
1answer
145views
Is it possible to snoop on documents/media while uploading them on a Desktop app?
Websites often enforce HTTPS to prevent snooping of sensitive input. Is there something equivalent while uploading files from local disk onto a desktop app, say the desktop version of Signal? When I ...
15votes
1answer
11kviews
Signal messaging app / How does sync on connected devices work?
I would like to know how paired devices get synced together in Signal messaging app. So this is what they say on their website Signal messages, pictures, files, and other contents are stored locally ...
- 153
0votes
3answers
2kviews
What can my Telco / ISP learn from my Signal (secure messaging app) communications?
To preface this question, I use Signal messaging app for voice, video and text. I understand that the content of all these messages are encrypted and no-one but the sender and recipient can see/hear ...
- 53
