The Hungarian National Authority for Data Protection and Freedom
of Information (the "Authority" or "NAIH")
recently imposed a fine of HUF 100m (approx. EUR 285,000)
on one of the biggest electronic communication service providers
Digi Távközlési Szolgáltató Kft.
("Digi"). This is the highest data protection fine
imposed in Hungary since the entry into force of the GDPR and the
highest ever fine levied in Hungary for a violation of data
protection regulations.
An ethical hacker discovered a vulnerability affecting
Digi's website, based on which it was possible to access a
"test database" that contained a significant amount of
personal and sensitive data of Digi's subscribers (e.g. name,
data and place of birth, email address and password, bank account
number, willingness to pay). The ethical hacker informed Digi of
this vulnerability and Digi took corrective action and submitted a
breach notification to the Authority within 72 hours as prescribed
by the GDPR.