Vishing your help desk, and vendors who go quiet

Help desk identity verification is the control I find broken most often, and it almost never shows up as a finding in a readiness assessment because nobody tests it. Somebody calls your service desk claiming to be a sales director with a new phone, sounds stressed, and your MFA reset procedure is whatever the person on shift decides it is that day. Write the verification steps down, require a callback to a known number or a manager confirmation for any MFA or password reset, and have someone outside the team phone in and try to break it this week.

The intrusion was survivable. The handling is what moved customers to tell the public not to use the product, which is about as bad an outcome as a software vendor can engineer for itself. If you have an incident response plan with no communications section, or one that says "notify counsel" and stops there, you have the same gap, and your US enterprise customers will act faster than a Canadian regulator ever will.

Read that from the other side of the table, because you are the outside supplier in someone else's version of this report. Numbers like these are exactly what feeds the next generation of vendor questionnaires, so expect more questions about your subprocessors, your own vendor reviews and what happens to customer data when one of your providers is compromised. Vendor management is the control domain where I see the most paper and the least practice, and a prospect's security team can usually tell the difference in one call.

The phrase is doing a lot of work in that disclosure, and I would not treat it as a new category of threat until somebody publishes the actual chain. What I do take from it is that attacker tooling is getting cheaper and faster, so the window between a mistake in your environment and someone finding it keeps shrinking. For fintech readers, note the parts Chainalysis was able to rule out quickly, because being able to say credentials and session tokens were untouched requires logging you need to set up long before you need it.

The diagnosis is right and I have no faith in the industry fixing it soon, because the questionnaire exists to transfer blame as much as to measure risk. What shortens it in practice is handing over a real audit report with evidence attached before anyone asks, which turns a 300-question exercise into a short clarifying call. Keep an honest answer library, mark the controls you have not built yet as not implemented with a date, and resist the urge to stretch the truth, since the security engineer reading it will test two or three answers and judge the rest by what they find.