Offensive Security · Est. 2023

We find the way in.
/ Before anyone else does.

Vastara is an adversarial security practice for companies that can't afford a breach. Continuous penetration testing, red team operations, and exploit research — performed by operators who built the tools the rest of the industry uses.

340+
Engagements delivered
42/yr
CVEs disclosed
11
Operators · all OSCE³ / OSEP
0
Client breaches post-engagement
// 01 — Approach

The defender's perspective is a luxury. We don't have one.

We work the way an attacker would, on a clock they wouldn't. Six disciplines, one operating system — adversarial pressure applied continuously, not annually.

01 / Pentest

Application & cloud penetration testing

Manual, white-box-friendly assessments of web, mobile, API and AWS/GCP/Azure environments. No autoscanner reports.

02 / Red team

Full-scope red team operations

Initial access, post-exploitation, lateral movement — measured against your detection and response. Reported as a narrative, not a CVSS list.

03 / Continuous

Continuous offensive testing

An operator-on-retainer model. We re-attack your perimeter every release, every quarter, against the threat model that actually applies to you.

04 / Research

Vulnerability & exploit research

Original 0-day research for products in your stack. We've shipped advisories to vendors ranging from kernel maintainers to top-tier SaaS.

05 / Advisory

CISO advisory & threat modelling

Board-ready risk articulation. Reverse-engineered threat models for production systems and the org chart that actually ships them.

06 / Incident

Incident-response sparring

Purple-team simulations of breach scenarios on your real infrastructure. Calibrated against MITRE ATT&CK techniques observed in your sector.

// 02 — About

An operator-owned firm. No sales engineers, no spreadsheet pentesters.

Vastara was founded by operators who left the largest red teams in the industry to do one thing well: adversarial security delivered by the person who will look you in the eye when it's time to read out a finding.

We don't sub-contract. We don't recycle a checklist. We don't run a 200-page Nessus report past a junior on a Monday and call it a pentest. Every engagement is led end-to-end by a senior operator with at least six years of real-world offensive work.

We measure ourselves the only way that matters — by what we keep finding that other teams missed. Then we publish the techniques, so the rest of the industry catches up.

Founded2023 · Singapore
Operators11 senior, 4 research
SectorsFintech, AI infra, healthcare, SaaS, public
MembershipsCREST · OSCP/OSEP · CHECK
Disclosure90-day coordinated, advisories public
Insurance$10M E&O · $5M cyber
// 04 — Engage

Start with a scoping call.
30 minutes. No deck.

Tell us what you're worried about. We'll tell you what an attacker would do about it, how we'd test that, and what it costs. If we're not the right team, we'll point you to someone who is.

EncryptedPGP key · 0xA9C2 4E1B
Emailops@vastara.ai
Signal@vastara.01
OfficesSingapore · Remote-first
HoursMon–Fri · 24/7 incident line for clients
// Request engagement REQ-2026-0511
Pentest Red team Continuous Research Advisory Incident

We reply within one business day, often the same evening.