Cybersecurity

5847 readers

12 users here now

c/cybersecurity is a community centered on the cybersecurity and information security profession. You can come here to discuss news, post something interesting, or just chat with others.

THE RULES

Instance Rules

Be respectful. Everyone should feel welcome here.
No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia.
No Ads / Spamming.
No pornography.

Community Rules

Idk, keep it semi-professional?
Nothing illegal. We're all ethical here.
Rules will be added/redefined as necessary.

If you ask someone to hack your "friends" socials you're just going to get banned so don't do that.

Learn about hacking

Hack the Box

Try Hack Me

Pico Capture the flag

Other security-related communities !databreaches@lemmy.zip !netsec@lemmy.world !securitynews@infosec.pub !cybersecurity@infosec.pub !pulse_of_truth@infosec.pub

Notable mention to !cybersecuritymemes@lemmy.world

founded 2 years ago

MODERATORS

kid@sh.itjust.works

Lanky_Pomegranate530@midwest.social

185

FBI Warns Americans to Start Using Encrypted Messaging Apps (gizmodo.com)

submitted 2 weeks ago by kid@sh.itjust.works to c/cybersecurity@sh.itjust.works

53 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] Supernova1051@sh.itjust.works 1 points 2 weeks ago (1 children)

Lacking end-to-end encryption does not mean it lacks any encryption at all, and that point seems to escape most people.

Not using end-to-end encryption is the equivalent of using best practice developed nearly 30 years ago [1] and saying "this is good enough". E2EE as a default has been taking off for about 10 years now [2], that Telegram is going into 2025 and still doesn't have this basic feature tells me they're not serious about security.

To take it to its logical conclusion you can argue that Signal is also “unencrypted” because it needs to be eventually in order for you to read a message. Ridiculous? Absolutely, but so is the oft-made opine that Telegram is unencrypted.

Ridiculous? Yes, you're missing the entire point of end-to-end encryption, which you immediately discredit any security Telegram wants to claim:

The difference is that Telegram stores a copy of your chats that they themselves can decrypt for operational reasons.

Telegram (and anyone who may have access to their infrastructure, via hack or purchase) has complete access to view your messages. This is what E2EE prevents. With Telegram, someone could have access to all your private messages and you would never know. With E2EE someone would need to compromise your personal device(s). One gives you zero options to protect yourself against the invasion of your privacy, the other lets you take steps to protect yourself.

the other hand, if you fill your Telegram hosted chats with a whole load of benign crap that nobody could possibly care about and actually use the “secret chat bullshit” for your spicier chats then you have plausible deniability baked right in.

The problem here is that you should not be mixing secure contexts with insecure ones, basic OPSEC. Signal completely mitigates this by making everything private by default. The end user does not need to "switch context" to be secure.

[1] Developed by Netscape, SSL was released in 1995 - https://en.wikipedia.org/wiki/Transport_Layer_Security#SSL_1.0,_2.0,_and_3.0

[2] Whatsapp gets E2EE in 2014, Signal (then known as TextSecure, was already using E2EE) - https://www.wired.com/2014/11/whatsapp-encrypted-messaging/

[–] TedZanzibar@feddit.uk 1 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Yeah that's cool and all but you're strawmanning. Your original comment, that I hear parroted a lot, is that Telegram is (basically) unencrypted, and regardless of your feelings about the suitability of MTProto (not SSL) that's patently untrue.

There's no evidence that MTProto has ever been cracked, nor any evidence of them selling or allowing anyone access to their servers and recent headline news backs this up. Whether you choose to trust them with your data is up to the individual to decide. I'm just tired of seeing the "Telegram is unencrypted" claim in every instant messaging thread, made by people who don't know or care to know the difference between encryption and E2E encryption.

Google, on the other hand, routinely allow "agencies" access to their servers, often without a warrant, and WhatsApp - who you cite as a good example of E2E encryption - stores chat backups on GDrive unencrypted by default. They added the option to encrypt last year but nobody was forced (or possibly even asked?) to turn it on, and to this day no encryption of backups is still the default. And while you might encrypt your backups, can you be sure the same is true for the people on the other end of your chats?

[–] Supernova1051@sh.itjust.works 1 points 2 weeks ago

nor any evidence of them selling or allowing anyone access to their servers and recent headline news backs this up

The entire point is that you shouldn't have to put your trust that a third party (Telegram or whoever takes over in the future) will not sell/allow access to your already accessible data.

There’s no evidence that MTProto has ever been cracked, nor any evidence of them selling or allowing anyone access to their servers and recent headline news backs this up

Just because it's not happening now does not mean it cannot happen in the future. If/when they do get compromised/sold, they will already have your data; it's completely out of your control.

Google, on the other hand, routinely allow “agencies” access to their servers, often without a warrant

Exactly my point. Google are using the exact same "security" as Telegram. Your data is already compromised. Side note - supposedly RCS chats between Android is E2EE although I wouldn't trust it as, like Telegram, you're mixing high/low security context, which is bad OPSEC.

WhatsApp - who you cite as a good example of E2E encryption - stores chat backups on GDrive unencrypted by default

Security is about layers. E2EE is better than not having E2EE. Same as transport layer encryption is better than none. Would you prefer anyone on the wire can read your messages just because it's not perfect in every single use case? No, and for that same reason, E2EE is better.
Backups can be made E2EE [1]. Is this perfect? No. But its significantly better than Telegram.
I'm only pointing out that Whatsapp is better for privacy than Telegram - I still don't personally use or recommend it.

... can you be sure the same is true for the people on the other end of your chats?

Valid concern, but this threat exists on almost every single platform. Who's to stop anyone from taking screenshots of all your messages and not storing them securely?

[1] https://www.tomsguide.com/news/whatsapp-encrypted-backups