Delta chat is also less secure than Signal because it runs on standard email servers, which inherently leak more tracking metadata (like sender and recipient addresses) and lack Signal’s advanced privacy features like Perfect Forward Secrecy.
It will have forward secrecy after they finish implementing Autocrypt2.
A person also has to determine their security threat level. If they think a state actor may take a personal interest in them, then they’re probably best using in-person offline communication. If they must communicate online, then IMHO I don’t think Signal is a good choice due to it being centralized (everything goes through their servers, and they are a single entity making them easier to infiltrate or coerce by governments) and requiring you to link a personally identifying number or credit card.
If they just don’t want a corporation datamining them to sell to advertisers, Deltachat is more than good enough.
Delta chat is also less secure than Signal because it runs on standard email servers, which inherently leak more tracking metadata (like sender and recipient addresses) and lack Signal’s advanced privacy features like Perfect Forward Secrecy.
Regarding metadata, you may want to read the FAQ.
It will have forward secrecy after they finish implementing Autocrypt2.
A person also has to determine their security threat level. If they think a state actor may take a personal interest in them, then they’re probably best using in-person offline communication. If they must communicate online, then IMHO I don’t think Signal is a good choice due to it being centralized (everything goes through their servers, and they are a single entity making them easier to infiltrate or coerce by governments) and requiring you to link a personally identifying number or credit card.
If they just don’t want a corporation datamining them to sell to advertisers, Deltachat is more than good enough.