As legislators discussed the US credit card security breach and the global fallout at the financial affairs panel yesterday, it emerged the panel's chairman could have been at risk following the incident. Bernard Chan said after the meeting that HSBC and Citibank had approached him last month and replaced two credit cards because they could have been compromised. 'I don't know even now whether my personal data have really been stolen, I think the banks should display more transparency,' he said of HSBC and Citibank, which gave him no details. Mr Chan said he had not been notified of any irregular transactions with his two cards, but said he had always been cautious. 'I keep three cards, one for local shopping, one for shopping in the US and a third one for internet purchase - this way you minimise your loss.'