March 24, 2018 2:59 AM
The success of Certificate Transparency rests on the existence of a robust ecosystem of logs and log operators. Without logs that CAs can depend on, it’s not practical for browsers to require that SSL certificates have been logged to be trusted—as Chrome plans to do on April 30....
March 23, 2018 2:45 PM
Certificate Transparency (CT) is an ambitious project to help improve security online by bringing accountability to the system that protects HTTPS. Cloudflare is announcing support for this project by introducing two new public-good services....
March 12, 2018 4:00 PM
On June 4, Cloudflare will be dropping support for TLS 1.0 and 1.1 on api.cloudflare.com. Additionally, the dashboard will be moved from www.cloudflare.com/a to dash.cloudflare.com and will require a browser that supports TLS 1.2 or higher....
March 06, 2018 3:46 PM
A week ago we published a story about new amplification attacks using memcached protocol on UDP port 11211. A few things happened since then: Github announced it was a target of 1.3Tbps memcached attack. OVH and Arbor reported similar large attacks with the peak reported at 1.7Tbps. ...
February 26, 2018 12:04 PM
Last week Troy Hunt launched his Pwned Password v2 service which has an API handled and cached by Cloudflare using a clever anonymity scheme. The following simple code can check if a password exists in Troy's database without sending the password to Troy....
February 21, 2018 7:00 PM
Both in our real lives, and online, there are times where we need to authenticate ourselves - where we need to confirm we are who we say we are. This can be done using three things....
February 16, 2018 10:30 PM
To everyone in Cloudflare, account security is one of our most important tasks. We recognize that to every customer on our platform, we are critical infrastructure. We also know that the simplest attacks often lead to the most devastating of outcomes. ...
February 14, 2018 8:00 PM
Google just announced that beginning in July 2018, with the release of Chrome 68, web pages loaded without HTTPS will be marked as “not secure”. More than half of web visitors will soon see this warning when visiting unencrypted HTTP sites....
January 19, 2018 5:38 PM
In April, we wrote about Web Cache Deception attacks, and how our customers can avoid them using origin configuration. Since our previous blog post, we have looked for but have not seen any large scale attacks like this in the wild....
January 18, 2018 3:58 PM
Participating in the Internet democracy occasionally means that technologies that were once popular lose their utility as newer technologies emerge. SPDY is one such technology. As a result, we're announcing our intention to deprecate the use of SPDY for connections made to Clou...
January 17, 2018 2:00 PM
Tell me if this sounds familiar: any connection from inside the corporate network is trusted and any connection from the outside is not. This is the security strategy used by most enterprises today. The problem is that security is breached, the attacker has access to everything....
January 08, 2018 6:57 PM
Last week the news of two significant computer bugs was announced. They've been dubbed Meltdown and Spectre and they take advantage of very technical systems that modern CPUs have implemented to make computers extremely fast. ...
December 28, 2017 6:22 PM
I wouldn’t be surprised if the title of this post attracts some Bitcoin aficionados, but if you are such, I want to disappoint you. For me crypto means cryptography, not cybermoney, and the price we pay for it is measured in CPU cycles, not USD....
December 26, 2017 8:30 PM
Upgrading a security protocol in an ecosystem as complex as the Internet is difficult. You need to update clients and servers and make sure everything in between continues to work correctly. The Internet is in the middle of such an upgrade right now. ...
