What’s the risk of sending data to a non-compliant vendor?
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Using a non-compliant vendor doesn't transfer your liability. You remain responsible as the data controller, and regulators will look at your choice of processor as part of any investigation.
Under GDPR, controllers must only engage processors who provide "sufficient guarantees" to meet the regulation's requirements. That means you have a due diligence obligation before you sign up, not just after something goes wrong.
What can actually happen:
If your vendor has a breach and you didn't have a proper DPA in place, you're exposed to fines and enforcement action on your own account. GDPR fines can reach 4% of global revenue. CASL penalties reach $10 million per violation. These aren't theoretical numbers. They've been applied.
Beyond regulatory risk, there's practical damage: your subscriber data could be misused, you could lose access to it, and your deliverability could suffer if the vendor's infrastructure gets blocklisted.
What to verify before using a vendor: Check for SOC 2 Type II certification, a clear DPA, and their sub-processor list. If they can't provide these, that's your answer.
If you're already in a vendor relationship and unsure about compliance, it's worth a review before something forces the issue.
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