INTERNET Watch featured GMO BRAND SECURITY’s research on email security enforcement among Japanese financial institutions

On Friday, August 7, 2026, INTERNET Watch featured our research report, "Survey of 386 Banks and Credit Unions: Only 26.7% of Financial Institutions Block Spoofed Emails," along with market insights and analysis from GMO Brand Security.

Our survey covering 386 financial institutions nationwide revealed that while the DMARC adoption rate reached 60.4%, only 26.7% have set up strict enforcement ("quarantine" or "reject") to block unauthorized emails—a figure that drops to just 11.8% among credit unions. Many institutions remain at the "monitoring" level due to concerns that strict settings might prevent legitimate emails from being delivered.

However, for financial institutions using email for services like online banking, taking action against email spoofing is an urgent priority. Beyond gradually transitioning to strict DMARC enforcement policies, implementing proactive email security measures—such as BIMI to visually confirm sender authenticity—is becoming essential.

GMO BRAND SECURITY provides hands-on guidance from initial implementation through ongoing operation. We invite you to read the full article below.

Article Information
・Article Title: Only 26.7% of 386 Japanese Banks and Credit Unions in a Position to Block Spoofed Emails: GMO Brand Security Survey (INTERNET Watch)
・URL: https://internet.watch.impress.co.jp/docs/news/2131394.html