According to Japan Daily Press, earlier this week thousands or even millions of accounts of two major Japanese web-portals were hacked possibly millions of their users’ accounts. Goo, owned by network operator NTT, said that as many as 100 thousand of their users’ accounts were compromised, while Yahoo Japan discovered a malicious program on their servers.
Tuesday night, April 2, Goo users became the victims of a series of brute-force attacks. Cybercriminals tried to gain access to accounts containing information about users’ bankcards. The frequency of attempts to access the information reached about 30 per second. Some accounts were actually gained access to.
Goo experts identified several IPs that were used in order to perform the attacks.
At approximately same time Yahoo Japan found on servers malware, using which hackers tried to access 1.25 million users’ data. Yahoo Japan experts managed to prevent the servers’ data from being hijacked. Researchers stated that there is no evident connection between the two attacks.