Analysts say such a shutdown could cut production in Nigeria, Africa's largest oil producer, by one-quarter within weeks or sooner if security forces guarding the facilities sympathize with union demands.
They are uniformed and carry their service weapons in holsters, with duties that include monitoring school security cameras, guarding entrances and watching for intruders.
Some armed police were deployed in cities and hundreds of staff from the private security firm G4S are guarding bank branches and helping to transport money.
Some armed police have been deployed in cities and hundreds of staff from the private security firm G4S are guarding bank branches and helping to transport money.
For the first time this year, IDC's annual information security survey revealed that information security officers were more concerned with stopping employee-caused data breaches than with guarding their networks against malicious software--which had ranked as their top concern for the eight previous years.
Wallet services are potentially prone to the same security and reliability pitfalls as individuals, though hopefully they do a better job of guarding against them.