Prevention,engineered.
We build software that's secure from the first line, and stop attacks, including AI-driven ones, before they reach you.
01 · Why now
Attackers now bring AI agents.
Automated agents scan, probe and adapt faster than anyone can read the alert. Waiting until something breaks is the most expensive way to find out. Prevention is better than cure, and it's what we do.
They don't sleep.
Automated attacks run around the clock, against everyone at once.
They change faces.
Agents rotate addresses and tools, so a list of blocked IPs alone doesn't hold.
They read your code.
Leaked keys, exposed endpoints and outdated packages are found by scanners first.
Prevention
Don't wait for war to come to you.
“He who knows when he can fight and when he cannot will be victorious.”
Our answer
Defence against AI-driven attacks
Their agents
We detect and stop rogue traffic and automated agents at the edge, using behaviour-based detection, firewall rules, rate limits, decoys that catch automated probing, and blocking bad sources.
Every fix
We trace the path an advanced persistent threat (APT) would take through your systems, close every step of it, and carry out every security fix ourselves. Then we test again to prove it holds.
02 · What we do
Two practices. One standard.
Engineering
We design and build software that's secure from the first line, from products and payments to cloud and the legacy code nobody wants to touch.
Secure by design is standard: threat modelling, code security review and automated security checks in every engagement.
Book a consultation- Web and mobile products
- Payment and fintech integrations
- Cloud and DevOps
- Legacy modernisation
- AI integrations
Security
We find the weaknesses before attackers do, and stop the attacks that come anyway.
Every engagement runs on Thetaline, our own security platform: assessments, white- and black-box testing, remediation, and build-image, dependency and package scanning.
Research in progress: elliptic-curve cryptography.
Explore Security- Defence against AI-driven attacks
- Counter cyber-espionage and cyber-terrorism
- Digital forensics
- Penetration testing
- Secure code review
- Cloud security review
- Incident response
- POPIA and ISO 27001 readiness
- Part-time CISO
03 · How we prevent
Assess. Harden. Verify.
Assess.
We map how your systems could be attacked, before anyone tries: threat modelling, code and cloud review, and testing against real attack paths.
Harden.
We fix what we find in your code and infrastructure, and build the checks into your delivery pipeline so it stays fixed.
Verify.
We test again the way an attacker would, and give you evidence you can show your board, your auditors and your clients.
Built on established frameworks
- Organisational securityNIST Cybersecurity Framework 2.0
- Information securityISO/IEC 27001
- National policySouth Africa's National Cybersecurity Policy Framework
04 · Work
Trusted with systems that move money.
-
Reach X
Related company
Field research and agent platform: web, iOS and Android apps, agent payouts and an AI research engine, released to production only through CI.
-
FINX Global
Related company
Payments ledger and wallet platform, built to stay correct under retries, concurrency and partial failure.
-
A South African credit provider
Website rebuild and a secure application intake running on Cloudflare.
-
A multi-cloud fintech
Hardening and a pre-launch security review across a fintech that runs on several clouds.
Reach X and FINX Global are related companies of Refactθ. Client names appear only with written permission.
05 · Contact
05 · Contact
Start with a conversation.
Tell us what you're building or what worries you. We reply within one business day.
Please don't send passwords, keys or incident evidence over WhatsApp. We'll set up a secure channel.