Telegram vs. Signal: Which Messaging App is Safer in 2024?

A debate is heating up between Telegram and Signal as they compete for the title of the most secure messaging app. With Telegram facing scrutiny after the arrest of its CEO, Pavel Durov, in France over issues related to moderation and law enforcement cooperation, the security of these two apps is under the spotlight.

Privacy is no longer something people overlook, whether they're using messaging apps for personal or business communication. Today, we’re diving into how Telegram and Signal handle your data, their encryption methods, and the security features they offer.

Key Takeaways

Signal: Offers end-to-end encryption by default for all messages. Telegram only provides this level of security in its "Secret Chats," while regular chats are stored on their servers with server-client encryption.

Data Storage: Signal stores minimal data and keeps it on your device, not on servers. In contrast, Telegram stores all messages and data on its cloud servers by default.

Transparency: Signal’s open-source code allows for independent security audits, while Telegram’s core functions are closed-source.

Security Verdict: Signal is widely considered the more secure option due to its default encryption, minimal data storage, and open-source approach. However, Telegram’s user-friendly features might be better suited for some.

The Telegram-Signal Rivalry

On May 8, Telegram's CEO, Pavel Durov, took to his platform to accuse Signal of being insecure and even suggested ties with U.S. intelligence agencies. While these claims are largely unsubstantiated, they’ve added fuel to the fire in the ongoing battle between the two apps.

Elon Musk, who had previously supported Signal for its security, has also recently expressed doubts, citing unspecified vulnerabilities.

Adding to Telegram’s troubles, Durov was arrested in Paris on August 24, 2024, for allegedly failing to cooperate with law enforcement on issues like drug trafficking, child abuse, fraud, and terrorism. This incident has brought Telegram’s compliance with European law into question and could impact the app’s future, even as it approaches one billion users and gears up for a potential public offering.

Despite the drama, Signal has remained silent, which could be seen as a reflection of its confidence in being the more secure app. But does that make it the right choice for everyone?

What Matters Most for Privacy-Focused Users

While the rivalry between these apps might be interesting, the real question is: Which app should you trust with your private conversations?

Key Considerations:

• Encryption: Signal uses end-to-end encryption for all messages, ensuring that only the sender and recipient can read them. Telegram’s encryption is less comprehensive, applying end-to-end encryption only to Secret Chats, while regular chats are stored on its servers.

• Data Storage: Signal keeps your data on your device, not in the cloud, reducing the risk of breaches. Telegram, on the other hand, stores your data on its cloud servers, which could be a concern for some users.
• Transparency: Signal’s open-source code is regularly reviewed by security experts, adding a layer of trust. Telegram’s code is mostly closed-source, meaning it’s less transparent.

A Closer Look at Security Features

• Signal: Messages are protected by end-to-end encryption using the Signal Protocol, an open-source, peer-reviewed cryptographic protocol. Your data is stored on your device, and messages disappear after a set time, if you choose.
• Telegram: Uses its proprietary MTProto protocol for encryption, which is not publicly audited. Messages are stored on Telegram’s servers by default, with Secret Chats offering the option for end-to-end encryption. Disappearing messages are only available in Secret Chats.

Alternatives to Signal and Telegram

If neither Signal nor Telegram meets your needs, other secure messaging apps are available. For example:

• Threema: Based in Switzerland, it offers end-to-end encryption and lets you register without a phone number. However, it has a smaller user base.
• Wickr Me: Known for strong encryption and disappearing messages, though its interface might be harder to navigate.

Even mainstream apps like WhatsApp and iMessage have implemented end-to-end encryption, but it’s important to research their data storage practices before trusting them with your private conversations.

Expert Opinions

Experts tend to favor Signal for its security. For example, Waseem Mirza, a former BBC News Technology Presenter, compares Signal to Fort Knox for chats, while Telegram is like a regular bank—secure but with potential vulnerabilities. Other experts agree, noting Signal’s consistent end-to-end encryption and minimal data collection as key advantages.

The Bottom Line

When it comes to messaging, privacy is crucial. While Signal offers stronger security, Telegram’s ease of use and features make it appealing to many users. Ultimately, the best app for you depends on your privacy needs and how much you value security versus convenience.