The only way to know if your defences work is to test them. Nostra delivers penetration tests and vulnerability assessments that find your weaknesses before attackers do — with a prioritised, plain-English remediation plan.
Support from Dublin, Cork, Galway and Belfast — never outsourced.
And 98% client retention that speaks for itself.
Independently audited service delivery, every year since 2021.
Real-time dashboards and measurable commitments.
At least annually, and after significant changes to your network or applications. Many regulated clients also run continuous vulnerability scanning between tests.
Scans automatically flag known weaknesses; a penetration test has a skilled human actively attempt to exploit them and chain them together — like a real attacker would.
No — testing is scoped and scheduled to avoid disruption, with clear rules of engagement agreed in advance.
Managed cybersecurity services from Nostra — layered protection, 24/7 monitoring and compliance from SonicWall's Partner of the Year.
Learn more →SOC-as-a-Service from Nostra — 24/7 security analysts monitoring, triaging and responding to threats across your environment.
Learn more →Managed SIEM from Nostra — centralised security logging, correlation and alerting, tuned and monitored by experts. Compliance-ready reporting.
Learn more →Written by the Nostra team | Reviewed October 2026
Book a free consultation — we'll assess your needs and give you straight answers.
Talk to an Expert