A no-logs policy is a provider promise to avoid storing data about what a user does online or how they connect. In a VPN context, that usually means not keeping browsing activity, source IP addresses, connection timestamps, or detailed session metadata that could tie traffic back to a person.
This matters because a VPN moves trust from the local network to the provider. If the provider keeps logs, those records can be requested, leaked, or seized and then used to reconstruct activity. A genuine no-logs design reduces that risk, but the claim should be backed by clear policies, technical architecture, and independent audits. In real defense work, privacy-minded users and organizations look for minimal logging, short retention, and evidence that systems are built to avoid collecting sensitive metadata in the first place.