Singapore telecom company Singtel informed customers that its file-sharing system called FTA was it with a cyberattack. The company statement said the system was “illegally attacked by unidentified hackers. This is a standalone system that we use to share information internally as well as with external stakeholders. Accellion has informed us that this incident is part of a wider concerted attack against users of their file-sharing system. Cybersecurity experts offer perspective.