Why does this keep happening?

The internet was built for openness and speed, not for security. As more personal information is stored online, it has become a target for hackers, who constantly scan the internet for potential security holes and entry points. At government agencies, old, out-of-date systems and budget shortfalls have left information vulnerable. Security experts say there is no way to keep hackers out of systems with traditional defenses like firewalls and antivirus software. With breaches now the norm, organizations are finally moving toward more modern defenses, like monitoring software that can pick up unusual network activity and two-factor authentication, a system that requires employees and internet users to enter a second, one-time password when they log in from a new computer. But security experts say the only way information can be protected is to scramble it with encryption technology that makes it unreadable to hackers.