US Cyber Command, established three years ago, could grow as much as fivefold over the next few years.
The planned expansion comes amid a series of successful attacks, including a virus that wiped data from 30,000 computers at a Saudi oil firm.
Cyber Command currently has 900 staff members, both military and civilian. Defence officials told the Washington Post, which first reported the staff increase, that the Pentagon had approved an expansion to 4,900 troops and civilians.
Another official told Reuters news agency that the force would be expanded significantly, though details were still being worked out.
The expansion comes at a time when the US military is balancing decreased budgets and a shift towards Asia and the Pacific.
Source: BBC News
