The tool, from OpenDNS, is considered a 'technology preview' and may still have some bugs A security company specializing in the Domain Name System has released a Windows version of a tool that encrypts DNS requests, which could be spied on to reveal a user’s browsing activity.Last December OpenDNS released its tool, called DNSCrypt, for Apple’s OS X operating system. The company has now released a technology preview of the same tool for Windows, wrote David Ulevitch, OpenDNS’ founder and CEO.The tool encrypts DNS lookups sent between a person’s computer and OpenDNS, which provides a free lookup service. DNS requests are an essential part of the Internet, translating a domain name into an IP address that can be called into a browser. Most ISPs and other large organizations run their own DNS servers. But OpenDNS runs its own DNS lookup service, and someone can use their service by entering the company’s DNS servers into their network settings. The service is free, and OpenDNS claims its service is speedier and has better security. DNS requests are unencrypted, meaning that an interloper monitoring a person’s internet traffic, such as over an unencrypted public Wi-Fi access point at an airport or cafe, could see the requests and compromise a person’s privacy.“Anyone who knows what they’re doing can eavesdrop on your Internet activity and see exactly which domains you are resolving, and in many cases, what websites you’re visiting,” Ulevitch wrote. “Worse, sophisticated attackers can modify responses and redirect you to malicious sites.” About 10,000 people are using the Mac version of DNSCrypt. Ulevitch cautioned that the Windows version is a “technology preview” and may have some bugs, but it will be improved over time with feedback.Send news tips and comments to jeremy_kirk@idg.com Related content feature Top cybersecurity M&A deals for 2023 Fears of recession, rising interest rates, mass tech layoffs, and conservative spending trends are likely to make dealmakers cautious, but an ever-increasing need to defend against bigger and faster attacks will likely keep M&A activity steady in By CSO Staff Sep 22, 2023 24 mins Mergers and Acquisitions Mergers and Acquisitions Mergers and Acquisitions brandpost Unmasking ransomware threat clusters: Why it matters to defenders Similar patterns of behavior among ransomware treat groups can help security teams better understand and prepare for attacks By Joan Goodchild Sep 21, 2023 3 mins Cybercrime news analysis China’s offensive cyber operations support “soft power” agenda in Africa Researchers track Chinese cyber espionage intrusions targeting African industrial sectors. By Michael Hill Sep 21, 2023 5 mins Advanced Persistent Threats Cyberattacks Critical Infrastructure brandpost Proactive OT security requires visibility + prevention You cannot protect your operation by simply watching and waiting. It is essential to have a defense-in-depth approach. By Austen Byers Sep 21, 2023 4 mins Security Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe