He was accused of plotting with others to storm a government complex and block adjacent roads. During the protests in HK, police arrested the administrator of a Telegram group with some 30,000 participants. The issue is that some users don’t seem to be aware of the risks of using Telegram. Historically, all state actor-sized DDoS (200-400 Gb/s of junk) we experienced coincided in time with protests in Hong Kong (coordinated on This case was not an exception.” Telegram CEO Pavel Durov wrote on Twitter. However, on the day of the protests, Telegram told its users that it suffered a distributed denial of service (DDoS) attack, where its servers were overloaded with 'garbage requests' causing connection issues for many users. Pitched as a secure communication tool, Telegram has been used by both activists and others to avoid government scrutiny. When thousands of protesters took to the streets in Hong Kong during the protests against the proposed and controversial new extradition law, many turned to Telegram to help get organized. Yet, even with this feature, some experts argue that Telegram’s encryption is fundamentally flawed.ĭuring the protests in HK, Telegram was Hong Kong's most downloaded app on android and iOS! ![]() Messages in these secret chats can be deleted at any time and even set to 'self-destruct' after a set time. Encryption keys are exchanged when a secret chat is initiated, therefore securing the messages sent. Unlike regular messages, secret chats are not cloud-based and can only be accessed on the device used. To do so you need to check the encryption key, similar to Threema and Signal. Telegram does offer an encryption key to make sure you're chatting with the person your supposed to be chatting to on secret one-on-one chats and not some impostor. The good news is that Telegram offers a 'Bounty and Bug' program which pays hackers and others for uncovering bugs with an award, the size of which is determined based in how bad the situation or bug fix was. However, until now there has been no new audit conducted to confirm this claim. Telegram reacted and released a new version of the MTProto Mobile Protocol (2.0) which addressed the issues mentioned in the audit. Users have to be aware of this fact, but unfortunately the claims by companies make non-tech-savvy users to believe that their messages are unreadable by third parties." Finally, our conclusion is that Telegram, just like any other application has vulnerabilities. We believe that this is a serious privacy issue, because it can be exploited to detect relationships in classroom for example. By using the command line interface of Telegram we have been able to snoop on some of our friends and detect the times when they were conversing to each other. modified buggy Diffie-Hellman key exchange) that any knowledgeable security expert could penetrate. However, our survey shows that Telegram has had serious and simple issues in the protocol (e.g. Given these claims one would expect very high level of security from Telegram. When Telegram has started as a company it became popular because of its claims, public’s trust in the founders and also the timing (NSA leaks by Snowden were happened in the same year). "In this project we have surveyed the Telegram messenger. ![]() The secure chat encryption is powered by an MTProto Mobile Protocol as explained here:Īnd in May 2017, this protocol was audited by the Massachusetts Institute of Technology Group Chats have ZERO encryption! That option is just not available! These chats will only appear on the device you have accepted it on and not on any of the other devices you may have in place. Telegram has great apps and mighty stickers, which are cool! But they advertise privacy and security, however, that is not the case! End-to-end-encryption (E2EE) is not standard and is only implemented on the secure chat between any 2 users via a request option. The code is open-source which is a great start! However, this is for clients themselves but not for the servers. ![]() The good news is that even if you register with your telephone number, you don't need to share it! You can use a username and share this with your contacts. The app will ask for access to your local telephone book which you can deny or accept so as to see if you've got contacts already using Telegram. To register you need to provide your telephone number. The app has a native iOS (mobile) and iOS ipad version and, of course, an Android variant that is also downloadable on f-droid, which in turn means they are not relying, with the f-droid version, on Google Services. Whilst Telegram has apps for Windows, MacOS and Linux, most users are probably using it on a cellphone. The company operates out of Dubai but originated in Russia. Telegram has about 200 million users globally. To secure or not too secure? That is the question!
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