The attack on the Internet publisher Gawker which maintains a network of blogs and news sites such as Gizmodo, Lifehacker, and Kotaku has led to other sites advise its members on urgent change the password. Gawker sites were attacked and the attackers released data on more than one million online members. In the conviction that the same password is used by the Internet to register for access to different sites, Yahoo, Twitter and LinkedIn have warned of what happened to an unspecified number of its members advising the password change. The same has made the online game World of Warcraft, with over 12 million subscribers. Some of these companies are identifying data Gawker members made public to check if they also belong to its network and urge them to move to change their password to prevent tampering.

The attack on Gawker, whose sites warn of the data breach on the cover, there was this weekend. The authorship is attributed to the group Gnosis that have organized to protest the "arrogance" of the site, according to some posts attributed to that group. Gawker has produced a page of questions which meets the concerns of its members. The publication of the data shows, according to the BBC , which already knows: that the surfer comes to trivial passwords easily deduced. The most frequently used in that site were "123456", "password", "qwerty" and "consumer", among others. The problem is that 33% of Internet users use the same password to log in to different sites. This week, the hamburger chain McDonald's suffered a similar attack with data leakage although it is unclear whether there is relationship between the two cyber attacks.

Also this week, the social network Twitter was the target of an attack to spread spam(unsolicited commercial email) that was related to the data breach Gawker. Upon learning the passwords of Internet users who were registered at both sites, with the same password, the attackers used them to access the contact list of members of Twitter and launch their campaign spam. Earlier this year, Twitter posted a list of more than 300 passwords which banned use of keys for being used too often for a significant number of Internet users that made them extremely vulnerable.