Telegram co-founder Pavel Durov has identified push notifications as a significant privacy vulnerability. His warning follows reports that law enforcement accessed deleted Signal messages via device notification logs.
Durov stated that even after messages are deleted from a device or app, push notification data can persist, allowing retrieval. He emphasized that turning off previews offers no real protection if messaging partners do not do the same.
This situation underscores how metadata and application-generated information can be exploited, bypassing end-to-end encryption and compromising user privacy. Experts suggest decentralized messaging applications, which do not store such data, are becoming increasingly vital.
Interest in decentralized messaging and social media platforms has surged globally amid civil unrest and geopolitical instability. Applications that bypass traditional internet infrastructure and centralized networks offer users a way to communicate even during communication blackouts or bans.
Users are increasingly employing tools like VPNs to circumvent national firewalls and bans on privacy-focused applications. Durov noted that such measures have led to widespread VPN adoption, even in countries where messaging apps like Telegram are banned.