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Delta now says that payment-card information for about "several hundred thousand" airline customers may have been exposed by a malware breach last fall that also hit Sears and other companies. The airline says that the malware attack may have exposed customers' names, addresses, credit card numbers, card security codes and expiration dates. Delta offered the additional details about the attack Thursday, a day after saying that only a "small subset" of customers was affected. The airline said that it wasn't sure whether customers' information was actually compromised by malware that it believes was in software used by (24)7.ai, which provided the airline with online chat services for customers, for about 2 weeks. The software company said it discovered and fixed the breach in October. <br/>

Trade unions at Air France announced 4 more days of strikes at the end of April after walking out of talks Wednesday. The 10 unions have already staged strikes on 4 days in February and March and had already announced they would stop work on 7, 10 and 11 April. Wednesday, after just 45 minutes of talks with management, they said they would stage a further strike on 17-18 April and 23-24 April in pursuit of their demand for a 6% pay rise. Rail workers will also be on strike the 18, 23 and 24 April. Management had made "no realistic proposals", the unions said, claiming the strikes had already cost the company E100m. The airline says the first day caused the loss of E26m and claimed that accepting the union's demand would cancel out the savings made by a cost-cutting programme that began in 2011. <br/>