Verisign is a global provider of domain name registry services and internet infrastructure, including managing the .com and .net top-level domains. It also offers security services such as DDoS protection and managed DNS.
It is likely that the font utilized for the new Verisign logo, which has been in use since August 2012, is Akzidenz Grotesk Bold by Berthold Type Foundry, a typeface originally released in 1896.
Conversely, the previous Verisign logo, employed from 1995 to 2002, was probably created based on ITC New Baskerville Pro Roman.