Johannesburg - Cyber crime is a national crisis costing the country a billion rand a year, a law firm said on Wednesday. In two to three years it was estimated that the proceeds from cyber crime would outweigh those from all other forms of white-collar crime combined, as it had grown exponentially and would continue to do so. The government and private sector needed first to recognise that there was a problem and, following that, throw resources into combating cyber crime. Citizens needed to recognise that the threat of cyber crime existed and use common sense."The software [to crack passwords] is there. One needs to have strong, strong passwords," he said.