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KDDI Flags Material Internal Control Weaknesses After Fictitious Transactions at Subsidiaries
Audit Consideration Item 26/03: KDDI – Recoverability of Goodwill
Submitter: <9433> KDDI Corporation Submission Date and Time: June 25, 2026, 15:30 Submitted Document: Annual Securities Report Fiscal Year: 42nd Fiscal Year (from April 1, 2025 to March 31, 2026) <Key Audit Matters Related to the Consolidated Financial Statements – Number of Items: 3> ▼ Recoverability of Goodwill <First two sentences> The amount of goodwill recorded in KDDI Corporation’s consolidated statement of financial position is ¥580,269 million (3.04% of total assets in the consolidated financial statements).
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〔Stock in Focus〕KDDI declined on concerns over a data breach.
KDDI Corp. (9433) fell 41 yen from the previous day to close at 2,623 yen, reversing recent gains. This decline followed the company’s announcement on the 23rd that its email system, provided to internet service providers (ISPs), had suffered a cyberattack. According to KDDI, there is a risk that up to 14.22 million email addresses and passwords belonging to end users of these ISPs’ email services may have been compromised and potentially obtained by unauthorized third parties. Market participants noted, 'It remains unclear how significant the actual damage will be.'
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