Nemesis | Adversarial Exposure Validation

We prove what an attacker can really do to you continuously, and we hand you the detection information you need to improve.

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

We scanned thousands of hosts for CVE-2026-48710 and found something important: being behind a reverse proxy, CDN, or Cloudflare is not always enough protection. In some setups, X-Forwarded-Host can still be used as a bypass. (1/2)

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Loved joining the Fundtruck in Brussels!

Our co-founder Babette De Decker pitched #Nemesis to an expert jury at Greenbizzbrussels alongside 15 top Belgian startups.

Big thanks to the organizers, jury and fellow founders for an inspiring day 😃

🎥: @bymaddyness

#ThreatToTest

[Vladimir Vucinic @CyberSecBiz]

PHP2Shell just landed and if you would like to test your sites/application/servers what would be the best tool? Nemesis from @Persistent_Psi , of course!

Two critical unauthenticated RCE flaws in PHP core (CVE-2026-109618 and CVE-2026-109619) let attackers potentially take over web servers. They affect huge range of PHP versions (widely used by WordPress, Joomla, Laravel, Drupal, etc.). Exploitation reports are already circulating. CloudFlare already see huge increase in traffic with attach/RCE patterns. Is your site/application vulnerable?

@Persistent_Psi Nemesis makes it easy. Atomic for PHP2Shell is already available, you just need to run the safe simulation against your PHP endpoints (servers) and get clear, evidence-based results on exposure, prevention, and detection. No custom exploit work required. Continuous BAS lets you validate patches and controls the same way attackers will probe them. Patch immediately, and then prove it works.

#CyberSecurity #PHP2Shell #BAS #Nemesis #BreachAndAttackSimulation #PHP #InfoSec

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Meeting #DORA requirement like Articles 25 & 26 means moving beyond basic self-assessments & actively testing how your defenses hold up against real threats

#Nemesis maps threat emulation directly to these mandates to give you repeatable, auditable proof

https://t.co/x96u0kAAqL

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Great to see us featured by the @Cyber_Coalition!

Our co-founder Babette De Decker spoke about her path to Nemesis, why cybersecurity needs diverse talent, and how we're making security validation accessible to all.

https://t.co/7hlthhKDkw

#Nemesis #ThreatToTest #Security

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Nikos Laleas from our team took the stage at the @netpptechnology event to show how #Nemesis runs live, continuous attacks to see what security controls actually hold up.

A huge thanks to the Net++ team for putting together a great session at Hard Rock Cafe.

#ThreatToTest

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Huge shoutout to @calif_io (@Icfr_hax) for discovering PHP2Shell (CVE-2026-109618/19)

Patching is only half the battle. Within 24h, we built #Nemesis simulations to safely test real attacks and prove your defenses actually work

https://t.co/0rOrBEfd0n

#PHP2Shell #ThreatToTest

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Conversations at @_c0c0n_ 2026 proved enterprise teams want advanced #securityvalidation without sending sensitive logs to external clouds.

That’s why we built #Nemesis full on-prem execution with zero data leakage. Great connecting with defenders!

https://t.co/C1ksh6kmvg

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Some environments thrive in the cloud, others demand on-premise control especially in regulated sectors

Nemesis handles both effortlessly by running #localAI model inside your own system.

Get continuous attack validation w/o compromising on where your data lives.

#ThreatToTest

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

We’re heading to Techtonics!

Our co-founder Babette De Decker will be there representing Nemesis, ready to catch up w familiar faces, make new connections and talk about where defenses break down.

If you're attending, come say hi 👋

#Techtonics2026 #Networking #cybersecurity

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Our co-founder @marver caught up with @benarent, Rob Picard to discuss #AI; #redteam vs. #blueteam

Partnering w @goteleport for NYC security speakeasy was amazing, they’re such great people to collaborate with.

🫣 In the end, does your AI beat their AI?

https://t.co/WzqLDVEItZ

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Loved catching up with old friends and making new ones at @_c0c0n_ 2026!

Getting such a warm welcome from Kerala Police was a highlight, along with @marver's training session.

Big thanks to the organizers, volunteers and speakers for a great event 👋

#c0c0n2026 #cybersecurity

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Beyond the talk, it’s a great chance to grab lunch, connect with the community and swap ideas on where cybersecurity is heading.

If you’re around, drop by and say hello 👋

Link: https://t.co/sSZY0fE78A

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

4 Days To Go! We’re teaming up with @AikidoSecurity at A6K for a Brown Paper Bag Session on what no one actually tells you about scaling a cyber startup.

Our Co-founder Babette De Decker will be there sharing lessons and honest takeaways.

#Nemesis #Networking #offensivesecurity

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Talk Details: https://t.co/yYPLy9twUV

#OB12026 #OffByOne2026 #offensivesecurity #AIForSecurity

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

🎙️ @marver is taking the stage at @offbyoneconf to break down the sheer chaos of AI security!

Between indirect prompt injection & models executing untrusted code, context has officially become the new attack surface.

If you’re at the event and want to catch up, drop us a line!

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Connect with us to know how it will work on your system: https://t.co/UykN4C05yT

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

🧐If you’ve been holding off an AI-driven security testing because of strict compliance, we get it!

🥳Introducing Nemesis’s On-Prem Local AI, you can run continuous attack simulations powered by a custom model hosted entirely on your systems.

#LocalAI #EUSecurity #ThreatToTest

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

@marver's event schedule for Sep & Oct is set!

As CEO at Nemesis, he’s connecting with SOC leaders & MSSPs globally. We’re revolutionising security control validation with local, on-prem AI for dynamic threat testing instead of static scripts. Let’s connect!

#ThreatToTest #DORA

[Nemesis | Adversarial Exposure Validation @Persistent_Psi]

Berlin's breach proves defenses need #continuousvalidation. Know controls work before hackers test them!

#Nemesis turns your threat profile into practical on-prem assessments; executing #MITRE ATT&CK techniques to map attack paths & convert missed TTPs to Sigma rules.

#Rhysida

[benarent @benarent]

Great fun interviewing @marver of @Persistent_Psi and Rob of @goteleport ; for last nights Offensive vs Defensive in the Age of AI