News and journalist attendance is lighter than normal at InfoSec this year. But what is everyone at Infosec talking about? We’ve taken a look at the volume and dynamics of the conversations of 500 security influencers on Twitter

Here’s a snap shot of the top tweeted stories on the day:

Police Seize Jason Chen’s Computers – iPhone 4 leak – Gizmodo
Apple pursues the recovery of its ‘lost’ iPhone.

Verizon dubs sec researchers ‘narcissistic vulnerability pimps’ – The Register
Security researchers who expose flaws come under attack

Although there are two hashtags in use in conversations (#infosec and #infosec2010), Trendistic has shown a steady uptake of conversation since Sunday.

The peaks in conversation, which are unlikely to be a surprise, are taking place at 10am and 1pm, with the use of the #infoSec2010 hashtag showing an hourly posting of 18 tweets.

Not every vendor is sticking closely to the concept of a community and some – which we won’t name – are pimping corporate content, others are actively enticing conversation.

Here’s a snap shot of attendees that are engaging with each other:

GeorgeVHulme: Anyone have any good data on the status of the TSA airport biometric credential program? @securitytwits #infosec

kidko92 RT @ChetWisniewski: Happy 25th to Sophos at InfoSec Europe, and Sophos Security Chet Chat episode 7 is posted http://bit.ly/dtKnhQ

While only a fraction of the 12,000 information security professionals that were expected at the show are engaged on Twitter there’s no doubt that it has added an additional dimension to the show.