Cloudflare is free of CAPTCHAs; Turnstile is free for everyone
Cloudflare is free of CAPTCHAs; Turnstile is free for everyone09/29/2023 This post is also available in 简体中文, 繁體中文, 日本語 and 한국어. For years, we’ve written that CAPTCHAs drive us crazy. Humans give up on CAPTCHA puzzles approximately 15% of the time and, maddeningly, CAPTCHAs are significantly easier for bots to solve than they are for humans. We’ve spent the past three and a half years working to b
Introducing Cloudflare Adaptive DDoS Protection - our new traffic profiling system for mitigating DDoS attacks
Introducing Cloudflare Adaptive DDoS Protection - our new traffic profiling system for mitigating DDoS attacks09/19/2022 This post is also available in Español, Pусский and Polski. Every Internet property is unique, with its own traffic behaviors and patterns. For example, a website may only expect user traffic from certain geographies, and a network might only expect to see a limited set of proto
Private Access Tokens: eliminating CAPTCHAs on iPhones and Macs with open standards
Private Access Tokens: eliminating CAPTCHAs on iPhones and Macs with open standards06/08/2022 This post is also available in 简体中文, 日本語, Español. Today we’re announcing Private Access Tokens, a completely invisible, private way to validate that real users are visiting your site. Visitors using operating systems that support these tokens, including the upcoming versions of macOS or iOS, can now prov
Secret Management with HashiCorp Vault
Many applications these days require authentication to external systems with resources, such as users and passwords to access databases and service accounts to access cloud services, and so on. In such cases, private information, like passwords and keys, becomes necessary. It is essential to take extra care in managing such sensitive data. For example, if you write your AWS key information or pass
HPKE: Standardizing public-key encryption (finally!)
HPKE: Standardizing public-key encryption (finally!)02/24/2022 For the last three years, the Crypto Forum Research Group of the Internet Research Task Force (IRTF) has been working on specifying the next generation of (hybrid) public-key encryption (PKE) for Internet protocols and applications. The result is Hybrid Public Key Encryption (HPKE), published today as RFC 9180. HPKE was made to be simp
Moving from reCAPTCHA to hCaptcha
This post is also available in Deutsch and Français. We recently migrated the CAPTCHA provider we use from Google's reCAPTCHA to a service provided by the independent hCaptcha. We're excited about this change because it helps address a privacy concern inherent to relying on a Google service that we've had for some time and also gives us more flexibility to customize the CAPTCHAs we show. Since thi
Public keys are not enough for SSH security
Public keys are not enough for SSH security Loading... If your organization uses SSH public keys, it’s entirely possible you have already mislaid one. There is a file sitting in a backup or on a former employee’s computer which grants the holder access to your infrastructure. If you share SSH keys between employees it’s likely only a few keys are enough to give an attacker access to your entire sy
WARP is here (sorry it took so long)
Today, after a longer than expected wait, we're opening WARP and WARP+ (plus) to the general public. If you haven’t heard about it yet, WARP is a mobile app designed for everyone which uses our global network to secure all of your phone’s Internet traffic. We announced WARP on April 1 of this year and expected to roll it out over the next few months at a fairly steady clip and get it released to e
Stupidly Simple DDoS Protocol (SSDP) generates 100 Gbps DDoS
Stupidly Simple DDoS Protocol (SSDP) generates 100 Gbps DDoS06/28/2017 Last month we shared statistics on some popular reflection attacks. Back then the average SSDP attack size was ~12 Gbps and largest SSDP reflection we recorded was: 30 Mpps (millions of packets per second) 80 Gbps (billions of bits per second) using 940k reflector IPs This changed a couple of days ago when we noticed an unusual
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