Contact tracing apps are not going to work.

• Why contact tracing apps are never going to work
• Unc0ver: There's a new iOS jailbreak in town, and as jailbreaks go, it looks VERY nice!
• Firefox 77 picks up a nifty new security trick
• New features in Chrome 83: cookie management, "Safety Check," blocking third-party cookies by default in Incognito mode, and "Tab Groups"
• Adobe rushes out four out-of-cycle emergency updates to fix security flaws
• Zerodium temporarily stops buying iOS remote code execution vulnerabilities
• The NXNS Attack: A group of cybersecurity researchers in Israeli have responsibly disclosed details about a new way they worked out of using the Internet's domain name resolution system to hugely amplify (by a factor of at least 1620 packets) a DDoS attack to take down targeted websites.
• BIAS - Bluetooth Impersonation AttackS is nothing less than a complete collapse of Bluetooth security.
• Is eBay port scanning its user's computers? Kinda.
• Security Now trivia: Steve Gibson helped develop the Speak & Spell! It did voice synthesis with only a 4K bits (0.5K bytes) processor.

We invite you to read our show notes at https://www.grc.com/sn/SN-768-Notes.pdf

Hosts: Steve Gibson and Leo Laporte

Download or subscribe to this show at https://twit.tv/shows/security-now.

You can submit a question to Security Now! at the GRC Feedback Page.

For 16kbps versions, transcripts, and notes (including fixes), visit Steve's site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6.

Sponsors:

• barracuda.com/securitynow
• Wasabi.com offer code SECURITYNOW
• extrahop.com/SECURITYNOW