Zack Whittaker

Zack Whittaker is the security editor for ZDNet, covering cybersecurity, national security, policy and privacy. He is based out of the New York newsroom, and can also be found on sister sites CNET and CBS News. You can contact him with his PGP key: EB6CEEA5.

Charlie Osborne

Charlie Osborne, a medical anthropologist who studied at the University of Kent, UK, is a journalist, freelance photographer and former teacher. She has spent years travelling and working across Europe and the Middle East as a teacher, and has been involved in the running of businesses ranging from media and events to B2B sales. Charlie currently works as a journalist and photographer -- with the occasional design piece -- and writes for ZDNet, CNET and SmartPlanet. She has particular interests in social media, IP law, social engineering and security.

Latest Posts

Cisco confirms vulnerability in 7921 Wi-Fi IP phone

Cisco confirms vulnerability in 7921 Wi-Fi IP phone

Two days after news of the Vocera Wi-Fi VoIP communicator PEAP security bypass vulnerability, I received confirmation from Cisco that their model 7921 Wi-Fi VoIP phone is also vulnerable to the same issue where digital certificates aren't cryptographically verified.  Both Cisco and Vocera have told me that they intend to fix future implementations of PEAP and do the necessary steps to ensure certificate authenticity.

February 22, 2008 by in Cisco

Microsoft: 'We try to reproduce every vulnerability that comes in'

Microsoft: 'We try to reproduce every vulnerability that comes in'

Microsoft outlined what it does with incoming vulnerability research, how it designates flaws and playing the cloak-and-dagger game with hackers.In a Q&A with Ryan Naraine, Jonathan Ness, the lead software engineer on Microsoft's SWI Defense team, addressed a big emerging issue between the software giant and security researchers: Who has the onus to reproduce the flaw?

February 19, 2008 by in Security

Wanted: Black Hat bloggers

Wanted: Black Hat bloggers

Due to a scheduling conflict, I can't make the Black Hat conference so we're calling for guest submissions for Zero Day.In a nutshell, we're looking for brief recaps of the Black Hat presentations and your take on the festivities since I can't be in three places at once.

February 15, 2008 by in Enterprise Software

Opera accuses Mozilla of irresponsible disclosure

Opera accuses Mozilla of irresponsible disclosure

In a blog posted yesterday on Opera's website, blogger Claudio Santambrogio tells us that he isn't happy about the way Mozilla handled an Opera security disclosure.  Here's what Claudio had to say:Mozilla notified us of one security issue ( ) the day before they published their public advisory ( ).

February 14, 2008 by in Enterprise Software

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