Some corporations will also be concerned, said Chris Wysopal, chief technology officer of computer security consultant Veracode.

WSJ: T-Mobile in Talks for New Phone

Aramco, the national oil company where she was working as a computer-security consultant at the time, wasn't pleased, either.

WSJ: The Weekend Interview with Manal al-Sharif: The Woman Who Dared to Drive

He held various jobs, and even earned money as a computer-security consultant, supporting his son to the extent that he was able.

NEWYORKER: No Secrets

Graham Cluley, senior technology consultant at computer security firm Sophos told CNN it was unlikely the attacker intended to cripple Twitter, or to cause widespread disruption.

CNN: Pro-Georgia blogger 'George' target of Twitter attack