Long lineups gathered outside Pichincha bank offices, and tens of thousands of people flocked to social media to vent their frustrations. People have complained about not being able to use the bank’s online or mobile app services. ATMs functioned reasonably well, and branches stayed open. In a statement released Monday, the bank said it had discovered a “cybersecurity problem in our systems” that had “partially suspended our services.” “We are accomplishing the impossible,” said Fidel Egas, the company’s largest stakeholder. They seek to hold us responsible for a situation in which we are the victims.” The government’s Bank Superintendency dispatched a delegation to the bank’s headquarters to keep an eye on the issues and potential remedies. That bank has roughly 1.5 million customers and a $1.5 billion client base.