A newly reported issue in Android 16 is raising concerns among security experts and VPN providers, with evidence suggesting that a system-level bug could silently disrupt VPN connections on affected devices. The problem, which has reportedly persisted for months, may leave users unknowingly exposed while they believe their internet traffic is still protected.
A Silent Failure In Android’s Network System
According to multiple VPN providers, Android 16 contains a flaw in its network stack that can cause VPN connections to stop functioning properly without notifying the user. The issue appears to be triggered in specific situations, particularly when a VPN app is updated via the Google Play Store while it is actively running.
When this happens, the VPN may continue to appear connected, but it can fail to route traffic securely in the background. This creates a dangerous scenario where users assume their data is encrypted, even though it may not be. The bug has reportedly affected several well-known VPN services, including Proton VPN, Mullvad, WireGuard, and TunnelBear, suggesting it is not limited to a single app or provider.
Why This Issue Raises Serious Concerns
VPNs are widely used to protect privacy, secure data on public Wi-Fi networks, and bypass regional restrictions. A silent failure undermines all of these benefits. If a VPN stops working without warning, sensitive data such as browsing activity, login credentials, or location information could be exposed to internet service providers or malicious actors.
The fact that this issue affects multiple VPN providers points to a deeper problem within Android itself rather than third-party apps. Reports indicate that the bug has been known since at least late 2025, yet it remains unresolved, raising questions about how such a critical flaw has persisted for so long.
What It Means For Everyday Users
For most users, the biggest concern is the lack of visibility. Unlike typical connectivity issues where a VPN disconnects visibly, this bug can leave the app appearing active even when it is not functioning correctly.
This means users relying on VPNs for security – such as when accessing banking apps, sending sensitive emails, or browsing on public networks – could be unknowingly exposed. The risk is particularly high for those who depend on always-on VPN configurations, assuming continuous protection.
What Comes Next
Google has acknowledged the reports but has not yet provided a confirmed fix or a timeline for resolving the issue. This leaves users and VPN providers in a holding pattern, waiting for an official patch.
In the meantime, VPN companies may implement workarounds or issue warnings to users, but a permanent solution will likely require changes at the operating system level. Until then, users may need to manually verify their VPN connections or avoid updating VPN apps while actively connected.
As Android 16 continues to roll out, this issue highlights the importance of robust system-level security testing – especially for features as critical as encrypted internet traffic.
