National Police Agency: responding to online defamation
Information on recording posts, deletion requests, police consultation, and related support resources.
View the NPA page
Last updated: April 2026
If you receive harsh criticism, defamation, threats, doxxing, repeated unwanted contact, or stalking-like behavior on social media, it may become difficult to stay calm. Please consider consulting public agencies or specialist support services rather than handling it alone.
1. About this page
This page summarizes public consultation resources and reference information from Japanese government agencies and related organizations.
Kotoba Mimamori helps you review words before posting, but even careful communication can still lead to unexpected attacks or strong criticism.
If you feel immediate danger
If you see threats of harm, suggestions of approaching your home or workplace, stalking, or other urgent risks, please contact emergency services or your nearest police station. In Japan, call 110 for emergencies.
This page is only an information guide and does not replace emergency reporting or professional consultation.
2. First things to keep in mind
Do not respond immediately
When you receive strong words, it is natural to want to reply at once. Emotional replies may sometimes increase attention or attacks. Step away from the screen if you can.
Save evidence if possible
Before requesting deletion or consulting someone, save URLs, dates, account names, content, and screenshots if you can do so safely.
Do not keep looking alone
Repeatedly reading harmful posts can be a heavy burden. If it is painful, ask someone you trust for help.
3. Situations where consultation may help
Defamation or groundless insults
If posts damage your reputation or spread groundless claims, check public consultation resources from agencies such as the National Police Agency or Ministry of Justice.
Doxxing or exposure of personal information
If your name, address, phone number, workplace, photos, or family information is posted without permission, record the URL and screen before seeking advice.
Threats or physical danger
If posts suggest harm, waiting outside, or approaching your home, the situation may be urgent. Consult the police or emergency services.
Repeated unwanted contact
Repeated messages after refusal may be more than criticism. It may be possible to consult public agencies about stalking-like behavior.
4. Public and related consultation resources in Japan
National Police Agency: cyber consultation
A consultation and reporting page for cyber incidents. Urgent matters are directed to local police or emergency reporting.
View the consultation pageMinistry of Justice: online human rights consultation
A consultation channel for online human rights issues such as defamation and privacy violations.
View the MOJ consultation pageIllegal and Harmful Information Consultation Center
A resource for consultation about deletion methods and online posts involving reputation or privacy harm.
View the centerDefamation Hotline
A contact point that receives reports of online defamation and encourages providers to take action such as deletion.
View the hotline5. Information to organize before consultation
- URLs of posts or messages.
- Date and time of posts or messages.
- Account names, user IDs, and profile URLs.
- Screenshots of the content.
- Whether personal information about you or your family is included.
- Whether there are threats, stalking, monitoring, or repeated contact.
- Whether you have already blocked, reported, or requested deletion.
Please do not handle everything alone
Keeping evidence matters, but continuing to look at harmful content can be painful. Ask someone you trust to help if needed.
6. Notes
This page is based on publicly available information from Japanese government agencies and related organizations. It does not provide legal judgment, individual advice, or deletion request services.
External resources and consultation channels may change. Please check each official page for the latest information.