What is the Global Cyber Alliance (GCA)?
Still have a question, spotted an error, or have a better explanation or a source we should cite?
You've probably heard that phishing emails impersonating real brands cause billions of dollars in damage every year. The Global Cyber Alliance (GCA) is a nonprofit that exists to do something about that. Founded in 2015 by law enforcement and cybersecurity organizations, GCA's mission is to reduce systemic cyber risk by building practical, free resources that anyone can actually use.
Email security is one of their biggest focus areas. GCA has put a lot of energy into getting organizations to adopt DMARC, the authentication protocol that tells mailbox providers what to do when an email fails your domain's identity checks. DMARC isn't hard to set up in theory, but the documentation can be intimidating. GCA helped by translating the technical specs into step-by-step guides built for teams without a dedicated security engineer on call.
Beyond DMARC, GCA also promotes the full authentication stack. That means SPF and DKIM too, because DMARC only works when those two are in place first. Their free toolkits walk organizations through each layer, check existing configurations, and flag gaps. Smaller organizations in particular found this genuinely useful (most DMARC guides assume a lot of background knowledge that smaller teams simply don't have).
For senders, GCA's work matters because broader DMARC adoption across the internet makes the whole email ecosystem safer. When more domains are protected, phishing gets harder, inboxes trust legitimate senders more, and your own reputation benefits from operating in a cleaner environment. It's a rising-tide situation.
If you want to check where your own DMARC record stands, our free DMARC Parser will show you exactly what yours says and whether it's configured correctly.
Contributors
Who worked on this answer
Every name links to their profile. Every company links to their site. Real people, real accountability.