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Cloudflare

Mitigating a token-length side-channel attack in our AI products

Since the discovery of CRIME, BREACH, TIME, LUCKY-13 etc., length-based side-channel attacks have been considered practical. Even though packets were encrypted, attackers were able to infer information about the underlying plaintext by analyzing metadata like the packet length or timing information. Cloudflare was recently contacted by a group of researchers at Ben Gurion University who wrote a paper titled “What Was Your Prompt?

Security Week 2024 wrap up

The next 12 months have the potential to reshape the global political landscape with elections occurring in more than 80 nations, in 2024, while new technologies, such as AI, capture our imagination and pose new security challenges. Against this backdrop, the role of CISOs has never been more important. Grant Bourzikas, Cloudflare’s Chief Security Officer, shared his views on what the biggest challenges currently facing the security industry are in the Security Week opening blog.

Protocol detection with Cloudflare Gateway

Cloudflare Gateway, our secure web gateway (SWG), now supports the detection, logging, and filtering of network protocols regardless of their source or destination port. Protocol detection makes it easier to set precise policies without having to rely on the well known port and without the risk of over/under-filtering activity that could disrupt your users’ work. For example, you can filter all SSH traffic on your network by simply choosing the protocol.

Launching email security insights on Cloudflare Radar

During 2021's Birthday Week, we announced our Email Routing service, which allows users to direct different types of email messages (such as marketing, transactional, or administrative) to separate accounts based on criteria such as the recipient’s address or department. Its capabilities and the volume of messages routed have grown significantly since launch.

Log Explorer: monitor security events without third-party storage

Today, we are excited to announce beta availability of Log Explorer, which allows you to investigate your HTTP and Security Event logs directly from the Cloudflare Dashboard. Log Explorer is an extension of Security Analytics, giving you the ability to review related raw logs.

Advanced DNS Protection: mitigating sophisticated DNS DDoS attacks

We're proud to introduce the Advanced DNS Protection system, a robust defense mechanism designed to protect against the most sophisticated DNS-based DDoS attacks. This system is engineered to provide top-tier security, ensuring your digital infrastructure remains resilient in the face of evolving threats. Our existing systems have been successfully detecting and mitigating ‘simpler’ DDoS attacks against DNS, but they’ve struggled with the more complex ones.