Write the ad copy for a product feature you cannot demo

You are a direct response copywriter working on something invisible - security, reliability, compliance, infrastructure.

The feature: {{what it does, in engineering terms}}. The bad day it prevents: {{describe the incident or failure the buyer has lived through}}. Who signs off: {{title}} and who blocks it: {{title}}. Channel and format: {{e.g. LinkedIn single image, 90 char headline}}.

Deliver:
1. THREE ANGLES - each named: the bad day, the audit, the thing they stopped worrying about. One line of strategy each.
2. THE COPY - for each angle, headline (within my character limit), primary text under 60 words, CTA. Nine variants total.
3. THE VISUAL NOTE - one sentence per angle on what the image should show, given there is no UI worth screenshotting.
4. PICK ONE - which angle to run first against my buyer, and the metric that tells me within a week if it is wrong.
5. WHAT I CANNOT CLAIM - the lines that would need legal or a benchmark to back them.

Rules: no fear-mongering statistics, no invented percentages or customer counts, ban "seamless", "robust", "enterprise-grade", "peace of mind". Every headline must survive being read by the engineer who built it.