Cyber diligence & transition security
See the risk before you own it.
Sightline Cyber helps acquirers understand a target company's real security posture before close — and puts a working security program in place in the first 30 days after.
Who we serve
Built for buyers of real businesses — not enterprise security budgets.
Search funds & independent sponsors
Right-sized diligence for lower-middle-market deals, scoped to your timeline and priced for your budget — not a Big Four engagement letter.
Private equity & family offices
Pre-LOI screens, confirmatory diligence, and post-close security programs across portfolio companies, with reporting your investment committee can actually use.
Operators & management teams
Practical security leadership for the company you just bought — what to fix first, what can wait, and what the insurance carrier and lender expect to see.
What we do
One engagement model, mapped to your deal.
Pre-close
Cyber due diligence
A focused assessment of the target's security posture, breach history, technical debt, and compliance exposure — delivered as findings your deal team can price into the transaction.
Details →First 30 days
Post-close security plan
A prioritized, budgeted 30-day plan that closes the most dangerous gaps first and gives ownership a defensible security baseline — without disrupting the business you just bought.
Details →Ongoing
Security leadership
Fractional security leadership after the transition: board and lender reporting, insurance renewals, compliance obligations, and a steady hand when something goes wrong.
Details →How we're different
Deal fluency first, security depth behind it.
We speak deal, not FUD
Findings arrive as transaction inputs — priced remediation, reps & warranties considerations, and integration costs — not a 200-page vulnerability dump designed to frighten you.
Regulator-grade depth
Our practice is grounded in FFIEC, NYSDFS Part 500, and NIST frameworks from years serving regulated financial institutions — the strictest standard, applied proportionately to your target.
Sized for the lower middle market
Fixed-fee scopes, short timelines, and recommendations a 40-person company can actually implement. No enterprise tooling reflex, no scope creep.
Next step
Have a deal in motion?
An initial call costs nothing and usually tells you within 30 minutes whether cyber risk should change how you think about the transaction.
Set up an initial call