At the network level, no. Your NymVPN devices are indistinguishable from any other devices on the network. At the account-management level, we know which devices belong to your subscription so we can enforce the 10-device limit, but no activity is ever correlated between them. Your traffic stays unlinkable across devices, even on the same account.
Two layers, two answers
Network layer: no, your devices are not linked
When a device connects to the NymVPN network, it presents a zk-nym credential that proves it has the right to connect. The credential proves nothing else, not your account, not your other devices, not your identity. To the gateways, mix nodes, and any observer on the network, your devices look identical to every other device using NymVPN.
This is what makes activity unlinkable. Even if all 10 of your devices are connected at the same time:
- No gateway can tell that two connections come from the same account.
- No mix node can correlate traffic across your devices.
- No observer on the network can fingerprint "this person's pattern" across devices.
Account-management layer: yes, technically, but only for subscription enforcement
For Nym Technologies to enforce the 10-device limit on your subscription, our internal systems need to know how many active devices each account has. That's the only place a device-to-account link exists, and even there:
- Device identifiers are anonymized. A random moniker per device. No OS, MAC address, IP, or traceable data is stored.
- No activity is correlated. What you do on one device is never linked to what you do on another. The architectural unlinkability above prevents this regardless of policy.
- No content is stored. The account layer doesn't see your traffic at all.
What this means in practice
- You can run NymVPN on your phone, laptop, and a friend's computer (signed in with your access code) and an observer cannot tell those connections belong to the same person.
- Different devices can use different modes (one on Fast, another on Anonymous) without that pattern leaking.
- Different devices can choose different gateway countries without linking them at the network layer.
What Nym does not store
The account layer holds the minimum needed to operate the subscription:
- Your anonymous account ID (starts with
n1) - Anonymized device IDs (random monikers; no OS, MAC, IP)
- Payment information required by law (date, amount, payment processor, currency)
The account layer does not store: your IP address, the sites you visit, your traffic patterns, which gateways your devices connect to, or any link between your devices and what they do.
For the full data list see How can I delete my NymVPN account? and How does NymVPN handle user data and logging?
Related questions
If I sign out of a device, what happens?
The device is removed from your account's active-device count, freeing a slot for another device. The 24-word access code remains valid; you can sign back in any time.
Can someone with my access code tell which other devices use my account?
They can see the device-count slot is used, but the anonymized device IDs don't reveal anything about the other devices (OS, location, identity). The privacy of your traffic is preserved regardless.