Chaser Systems

@ChaserSystems

The trinity of ‘developer experience + security standards + operational efficiency’ is greater than the sum of its parts. We call it ‘ergonomic cybersecurity’.

Cambridge, England

chasersystems.com

Joined August 2019

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Chaser Systems
@ChaserSystems
Aug 17
Three variations on subversive use of DNS by the Agent are documented in Hugging Face's technical writeup of the July 2026 security incident involving OpenAI models. In this article, @new23d discusses what each of these three types of DNS workarounds... chasersystems.com/blog/the-curio…
Chaser Systems
@ChaserSystems
Aug 17
v2.50 of DiscrimiNAT OTF now released on GCP. OTF* means Outbound Traffic Filtering. This version brings StartTLS SMTP support, and default rules, for #egress filtering on the cloud. *See MITRE D3FEND D3-OTF Release notes:
chasersystems.com
DiscrimiNAT OTF Google Cloud Release Notes | Chaser Systems
Review DiscrimiNAT OTF Google Cloud features, fixes, compatibility changes, and deployment-module updates.
Chaser Systems
@ChaserSystems
Aug 13
v2.50 of DiscrimiNAT OTF now released on AWS. OTF* means Outbound Traffic Filtering. This version brings StartTLS SMTP support, and default rules, for #egress filtering on the cloud. *See MITRE D3FEND D3-OTF Release notes:
chasersystems.com
DiscrimiNAT OTF on AWS Release Notes | Chaser Systems
Review DiscrimiNAT OTF on AWS features, fixes, compatibility changes, and deployment-module updates.
Chaser Systems
@ChaserSystems
Jul 29
Happy to reassure our users that the #egress evasion TTPs used by the Agent in the OpenAI & HuggingFace incident have long been mitigated in #DiscrimiNAT OTF (outbound traffic filtering). In fact in our demo, we show these attacks being caught. #2 is SNI spoofing, btw
Chaser Systems
@ChaserSystems
May 18
We were just assigned a /29 #IPv6 block by RIPE. We now have 633,825,300,114,114,700,748,351,602,688 IPv6 addresses. inet6num: 2a05:6340::/29 netname: UK-CHASERSYSTEMS-20260518 country: GB org: ORG-CSL88-RIPE admin-c: AA44781-RIPE apps.db.ripe.net/db-web-ui/look…