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【Spam email/SMS】How should I handle emails I receive stating KDDI, au or My au?

There have been multiple reports of malicious emails and text messages (SMS) that falsely claim to be from our company, leading users to unrelated sites and prompting them to input personal information. There are two ways to deal with it: ① Do not access any contact information (URLs, phone numbers, etc.) mentioned in suspicious emails/text messages (SMS), and ② Set up a spam filter. Please see below for more details.

①Do not access any contact information (URLs, phone numbers, etc.) mentioned in suspicious emails.

By accessing those contact information (URLs, phone numbers, etc.) mentioned in suspicious emails, you may become a victim of fraud.
Please be careful not to contact the sender, such as clicking on URL link or making a phone call.
Regarding charges from au, please directly check on My au or au PAY.

Even if a webpage is displayed by accident, please do not input any personal information and close it.

Please take measures such as changing your password to prevent it from being misused by a third party.

②Set up a spam filter (for au email only)

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.

For details on how to set up, click here (in Japanese only)

Please perform the recommended settings (in Japanese only)

If you have never set up a filter before, first perform the recommended setting (in Japanese only)
Register the email addresses of the senders you want to receive emails from in the reception list settings (in Japanese only)
When registering, please check the "Always receive"[必ず受信] item.

If you know only part of the sender's email address, you can set it with "Partial Match"[部分一致]

However, as this may apply to multiple email addresses, there is a risk of spam emails slip in

Please set the address book receive settings (in Japanese only) to "Receive from address book only"[アドレス帳のみ受信]
This can only be used if the sender's email address is saved in the au Address Book or Data Storage.

Please register the email address of the sender you want to block in the block list settings (in Japanese only)
If you still have emails that you want to block, you can easily register them from the au email app with one-touch block (in Japanese only)

For au one net email

Please set the filter according to your email usage.

For more information, including how to set up a spam filter, click here (in Japanese only)

(Reference) Other anti-spam measures

Change your au email address to avoid receiving spam emails.

How to change your email address (in Japanese only)
Provide information about spam emails.

How to report spam mail (in Japanese only)

Measures against nuisance SMS

Set up the Spam Messages/Calls Block app, which displays a warning for nuisance text messages (SMS) and calls such as fraudulent billing, and automatically displays the caller's name based on Yellow Pages information when receiving calls from public facilities and companies.

Spam Messages/Calls Block app (in Japanese only)

We will never send the following types of emails to our customers.

【Warning】au communication service suspension and contract cancellation notice
Communication service is suspended
There are cases it may not to be named after a specific telecommunication company such as au or KDDI, etc.
Direct Debit, Payment Due Date, Outstanding Charges
If you tap the URL mentioned, you may be asked to download a malicious app, log in to a fake My au, or pay the fee with electronic money (gift cards) which is not accepted by KDDI
Usage charges exceeded
If you tap the URL mentioned, you may be asked to download a malicious app, log in to a fake My au, or pay the fee with electronic money (gift card) which is not accepted by KDDI
Check bill payment
au ID temporary suspension

Your au ID has been temporarily suspended, please check. https://******** (URL is mentioned)
Warning of unauthorized login

There may be an abnormal login to your au Easy Payment. Please verify on the WEB page.www.au-*****
Line suspension

Important notice. Due to a violation of the customer's telephone line contract, we will suspend your line today. ***-***-**** (Phone number is mentioned)
Final notice of lawsuit

This is from the KDDI Customer Support Center. This is the final notice of a lawsuit regarding usage fees. Please contact us immediately. ***-****-(Phone number is mentioned)

Has your problem been solved?

All of the indicated amounts exclude tax unless otherwise specified.

【Spam email/SMS】How should I handle emails I receive stating KDDI, au or My au?

①Do not access any contact information (URLs, phone numbers, etc.) mentioned in suspicious emails.

If you entered your au ID information on a phishing site

②Set up a spam filter (for au email only)

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

If there are emails you want to receive, such as from credit card companies or mail order sites

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

If you receive spam email from a specific email address

(Reference) Other anti-spam measures

Measures against nuisance SMS

【Note】Examples of cases pretending to be au or KDDI