The number of Japan Post Bank customers affected by Japan Post's misappropriation of personal information has risen to about 10 million, Japan Post Holdings said Tuesday.

The Financial Services Agency called for measures to prevent a recurrence the same day.

To clarify management's responsibility for the scandal, Japan Post Bank, Japan Post, Japan Post Insurance and their parent company, Japan Post Holdings, decided to cut the pay of 14 executives, including Japan Post President and CEO Tetsuya Senda.

"We deeply apologize for causing anxiety and worry," Japan Post Holdings Managing Executive Officer Miho Ichiki told a news conference. "We take this situation seriously and will implement preventive measures thoroughly."

Japan Post is entrusted with over-the-counter services for Japan Post Bank and Japan Post Insurance.

Previously, it had come to light that the personal information of about 1.55 million Japan Post Bank customers was listed inappropriately for Japan Post Insurance's sales activities. An additional investigation has newly discovered that 8.43 million more people have been affected.

Senda will receive a 30% pay cut for three months. Remunerations will be slashed by 25% each for Japan Post Holdings President and CEO Hiroya Masuda and Japan Post Insurance President and CEO Kunio Tanigaki and by 20% for Japan Post Bank President Takayuki Kasama for the same period.

The latest investigation also revealed that employees solicited 167 customers for a new insurance product launched in January last year before obtaining marketing approval. This practice may have violated the insurance business law. On this, the FSA ordered Japan Post Holdings, Japan Post Insurance and Japan Post to investigate and report the facts of the case.