Cybersecurity
Security
No single control stops everything
Every layer of security has a known bypass. Endpoint protection misses what arrives as a legitimate login. Email filtering misses what comes through a compromised supplier. The defense that works is layered, so that getting past one control still leaves an attacker facing the next, and leaves you with a record of the attempt.
Assume it will happen
Prevention reduces the odds. It does not make them zero. A security posture that only plans for keeping attackers out has no answer for the morning it did not work.
So plan the response
Knowing who is called, what is isolated, how you communicate, and how you restore, decided before the incident rather than during it, is the difference between a bad day and a bad quarter.
If something does get through
Contain
Affected systems isolated from the network to stop lateral movement before anything else is attempted.
Assess
Establish what was reached, what was taken, and whether the access route is still open.
Eradicate
Remove the foothold, close the entry point, and rotate every credential that could have been exposed.
Recover
Restore from verified backup and return systems to production in a controlled order.
Notify
Meet the reporting obligations that apply to your industry and the data involved, within the deadlines they set.
Review
Establish what allowed it, and change the control that failed rather than filing the incident away.
When did anyone last check your security posture?
An assessment covers endpoints, email, firewall rules, access control and backup, and tells you which gaps are worth money to close.
