BreakSPF is a newly identified attack framework that exploits misconfigurations in the Sender Policy Framework (SPF) a widely used email authentication protocol. A common misconfiguration involves overly permissive IP ranges, where SPF records allow large blocks of IP addresses to send emails on behalf of a domain. These ranges often include shared infrastructures like…
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Navigating G-Cloud 14 for DMARC solutions: A guide for former NCSC Mail Check users With the NCSC discontinuing key features of its Mail Check service, including DMARC aggregate and TLS reporting, after March 2025, UK public sector organisations must prepare for this change by transitioning to alternative email security solutions. To support this shift,…
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The National Cyber Security Centre (NCSC) has suggested a change to Mail Check services starting on 24 March 2025. This change mainly involves ending DMARC aggregate reporting. This change comes as a measure to expand the services provided by Mail Check to any UK based organisation, while also limiting the cost and complexity of…
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Registrable domains and DNS play a crucial role in establishing online identity and trust, but their importance is often taken for granted. During new service setups, record updates are often overlooked, accumulating outdated entries. As infrastructure teams become increasingly overstretched, services may be incorrectly shut down without proper cleanup, leaving behind a sprawl of…
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In 2011, the original DomainKeys Identified Mail (DKIM1) standard was published. It outlined a method allowing a domain to sign emails, enabling recipients to verify that the email originated from an entity holding a private key that matches the public key published in the domain’s DNS records. Now in 2024, DKIM is ready for…
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In recent weeks, there have been reports of sophisticated phishing attacks disguised as official communication from the cryptocurrency platform, Coinbase. These phishing emails closely mimic Coinbase’s branding and language to build recipient trust and prompt clicks on malicious links. The subject lines of these emails generally follow a format: the sender’s address starts with…
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