Most smartphone users also have home connections, however, and do not face the affordability or digital literacy problems that have caused Internet adoption to remain stagnant.
Bank of America, JPMorgan Chase, Citigroup, U.S. Bancorp and PNC have been hit by a wave of cyberattacks that have caused Internet blackouts and delays on online banking sites.
Six major American banks were hit in a wave of computer attacks last week, by a group claiming Middle Eastern ties, that caused Internet blackouts and delays in online banking.
The Comcast Corporation said yesterday that it had "for the most part" solved technical problems that caused Internet and e-mail disruptions for about 7,000 New Jersey customers, though some customers say the company has played down the extent of the problems they have faced the last 10 days.
But crackdowns and surveillance have intensified recently, particularly during periods of political unrest, when the authorities have caused internet slowdowns and disconnections, or jammed telephone lines.
Ko et al. [ 66] thought that the novelty seeking or sensation seeking [ 67] of an individual was one of the reasons that caused Internet addiction.
