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Privacy Pass: Upgrading to the latest protocol version

The challenge of telling humans and bots apart is almost as old as the web itself. From online ticket vendors to dating apps, to ecommerce and finance — there are many legitimate reasons why you'd want to know if it's a person or a machine knocking on the front door of your website. Unfortunately, the tools for the web have traditionally been clunky and sometimes involved a bad user experience.

Have your data and hide it too: An introduction to differential privacy

Many applications rely on user data to deliver useful features. For instance, browser telemetry can identify network errors or buggy websites by collecting and aggregating data from individuals. However, browsing history can be sensitive, and sharing this information opens the door to privacy risks. Interestingly, these applications are often not interested in individual data points (e.g.

Don't Let the Cyber Grinch Ruin your Winter Break: Project Cybersafe Schools protects small school districts in the US

As the last school bell rings before winter break, one thing school districts should keep in mind is that during the winter break, schools can become particularly vulnerable to cyberattacks as the reduced staff presence and extended downtime create an environment conducive to security lapses. Criminal actors make their move when organizations are most vulnerable: on weekends and holiday breaks.

Integrating Turnstile with the Cloudflare WAF to challenge fetch requests

Two months ago, we made Cloudflare Turnstile generally available — giving website owners everywhere an easy way to fend off bots, without ever issuing a CAPTCHA. Turnstile allows any website owner to embed a frustration-free Cloudflare challenge on their website with a simple code snippet, making it easy to help ensure that only human traffic makes it through.

Australia's cybersecurity strategy is here and Cloudflare is all in

We are thrilled about Australia’s strategic direction to build a world-leading cyber nation by 2030. As a world-leading cybersecurity company whose mission is to help build a better Internet, we think we can help. Cloudflare empowers organizations to make their employees, applications and networks faster and more secure everywhere, while reducing complexity and cost.

Cloudflare 2023 Year in Review

This post is also available in 한국어, 日本語, Português. The 2023 Cloudflare Radar Year in Review is our fourth annual review of Internet trends and patterns observed throughout the year at both a global and country/region level across a variety of metrics. Below, we present a summary of key findings, and then explore them in more detail in subsequent sections.

Cyber Week: Analyzing Internet traffic and e-commerce trends

Throughout the year, special events lead to changes in Internet traffic. We observed this with Thanksgiving in the US last week, where traffic dipped, and during periods like Black Friday (November 24, 2023) and Cyber Monday (November 27, 2023), where traffic spiked. But how significant are these Cyber Week days on the Internet? Is it a global phenomenon? Does e-commerce interest peak on Black Friday or Cyber Monday, and are attacks increasing during this time?

Do hackers eat turkey? And other Thanksgiving Internet trends

Thanksgiving is a tradition celebrated by millions of Americans across six time zones and 50 states, usually involving travel and bringing families together. This year, it was celebrated yesterday, on November 23, 2023. With the Internet so deeply enmeshed into our daily lives, anything that changes how so many people behave is going to also have an impact on online traffic. But how big an impact, exactly?