Only 1 in 4 of the cybersecurity companies exhibiting at the celebrated Black Hat conference this week have implemented a set of best practices to prevent email spoofing and phishing, according to figures from the nonprofit Global Cyber Alliance. In a release Wednesday, GCA said that 73 percent of the 268 exhibitors had not deployed Domain-based Message Authentication, Reporting and Conformance, or DMARC — a set of email protocols that prevents spammers, phishers and other cybercriminals from using an organization’s name and email domain to conduct hacking attacks.

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