In this summary, the author of the text corrects several inaccuracies in an article regarding security issues in the tech industry. The author notes that "фичи" (a term used in the original text) are not a new concept and are actually known as "subdomains" or "subdomains with hidden parameters." Additionally, the author clarifies that while Telegram has a feature for creating hidden sessions, this does not necessarily mean that the user's session is secure, and there have been instances of users' accounts being hacked. The author also points out that Telegram already has a mechanism in place for reporting suspicious activity, which is actively used by moderators. Finally, the author emphasizes the importance of using these techniques responsibly and ethically, and always acting within the law.