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I would like to know how to deal with suspicious emails and text messages (SMS) from KDDI, au, etc.

You can prevent becoming a victim by taking two steps: Do not access any contact information (such as URLs or phone numbers) in suspicious emails or text messages (SMS) and set up a spam filter.

Additionally, there have been multiple reports of malicious emails and text messages (SMS) that falsely claim to be from our company, leading users to unrelated websites and prompting them to input personal information.

Check below for countermeasures.

Do not access any contact information (such as URLs or phone numbers) listed in suspicious emails

By accessing the contact information (such as URLs or phone numbers) listed in suspicious emails, you may become a victim of fraud.

Please be careful not to contact the sender by clicking on any URL links or calling them.

If you click on a URL and a webpage is displayed, do not enter any personal information and close the page immediately.

For inquiries regarding KDDI billing, please check directly on My au (Web).

Set up a spam email filter

If your device is an au smartphone, tablet, or 4G LTE mobile phone, please set up a filter according to your au email usage status.

If you do not have any emails that you particularly want to receive, and you have never set up a spam email filter

Please apply the recommended settings.

If you have emails you wish to receive, such as from credit card companies or online shopping websites

Please add the recipient's email address to your reception list settings.

If you only want to receive emails from family members or acquaintances

Set the address book reception settings to "Receive from address book only" [アドレス帳のみ受信]

If you receive spam emails from a specific email address

Register the email addresses of the senders you want to block in the rejection list settings.

If you still have emails that you want to reject, you can easily register them from the au email app with one-touch block.

For au one net email

Please set the email filters according to your email usage.

Other anti-spam measures

Measures against spam text messages (SMS)

  • All of the indicated amounts exclude tax unless otherwise specified.