Monitor

Common Defense keeps a continuous watch over the trust surfaces around your product, across email, messaging, social, professional networks, and voice or video. We track these channels for the impersonation and social-engineering campaigns aimed at your team and your customers.

Email security is largely solved. Modern filters catch the vast majority of mass phishing, so attackers moved. The largest recent losses started on the channels your stack doesn’t instrument: WhatsApp, Telegram, LinkedIn, SMS, and voice. Common Defense keeps continuous watch across all of them.

The Communication Firewall

The highest-signal indicators of social engineering show up only when signals across channels combine: a spoofed email, a message from a “colleague,” a call that borrows their credibility. Most tools see one surface at a time. The Communication Firewall sees the interaction between surfaces across email, WhatsApp, Telegram, and Slack, with link analysis built in.

A tool watching one surface at a time never assembles the whole. Correlation is the point.

A vCISO who already knows your environment

Because we already monitor and harden your stack, our vCISO engagement is grounded in your real risk, and it keeps the security roadmap moving between incidents.

Having Common Defense as our trusted vCISO and security advisors helps us provide the assurance needed for banks and fintechs to trust our infrastructure, so that we can scale up confidently. — CTO, stablecoin payments provider

Capabilities

Communication Firewall

One detection layer across email, WhatsApp, Telegram, and Slack, with link analysis. It watches the interaction between channels, where multi-surface social engineering reveals itself.

Phishing & Social-Engineering Protection

We catch the impersonation, urgency, and escalation patterns attackers use to turn a message on any channel into a wire transfer or an MFA reset.

Data-Exfiltration Monitoring

We watch for sensitive data leaving through unexpected channels and alert you while there's still time to contain it.

Ransomware Early-Warning Detection

We catch the precursors, from recon to staging to lateral movement, before encryption starts, so containment happens on your terms.

Endpoint Protection

Coverage on the devices where compromise begins, tuned for the way modern intrusions unfold.

vCISO

Ongoing security leadership and judgment on call, the advisory relationship that keeps hardening on track between incidents.