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PaymentIntermediate10 minall

Subscription Timing Privacy

Risk

The risk

Why this matters

Starting a VPN right after a news event, subscribing to encrypted email after a breakup, signing up for a health app after a diagnosis — the timing of subscriptions correlates with life events. Data brokers perform temporal correlation analysis.

Recommended tools

What to use

NullPay
NullPayOSS

NullPay's threshold pool mix with cover traffic breaks timing correlation between payment and redemption.

Disclosure: NullPay is this site's product.

Setup guide

How to set it up

  1. 1

    Be aware: the timing of when you subscribe to a service is itself a data point

  2. 2

    Use NullPay to decouple payment timing from service activation timing

  3. 3

    NullPay's batch processing queues redemptions in a threshold pool mix with cover traffic, breaking temporal correlation

  4. 4

    Consider purchasing tokens in advance, before you need a specific service