The ThinkPad X131e Chromebook simplifies software andsecurity management for school administrators and provides students and teachers with quick access to thousands of apps, education resources and storage.
When Internet providers fix the vulnerability, OpenDNS will lose some of its security appeal and return to pitching itself as a quickand cheap Web filter.
Observers said the episode highlighted the growing use by players in financial markets of social media such as Twitter and Facebook, and underscored the dangers of security breaches at a time when many investors are quick to trade on news.