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Sender Information DisclosureFrom preserving evidence of defamatory posts to removal requests, sender information disclosure and damages claims, our attorneys set the order in which to proceed.

Free consultation Why LegalAgent
Response time
1 business day*
First consultation
30 min free
Scope
Evidence · Removal · Disclosure · Damages

* As a rule, for contract reviews and routine legal questions. For complex or urgent matters we propose a schedule that fits the matter.

Client companies served*

150+

Selected clients shown, in no particular order. * Clients and partners. Not limited to Sender Information Disclosure matters.

KADOKAWA FRONTEO YAMAP ACROVE LAPRAS AVA Intelligence OPTIEUM Biotechnologies ReDelta Concrew LINEA Innovations TECHSUITE YStory

Responding to defamatory posts, starting with evidence preservation

For posts about your company, officers or employees on social media, message boards and review sites, we support evidence preservation, removal requests, requests for disclosure of sender information under the Information Distribution Platform Act (formerly the Provider Liability Limitation Act) and damages claims after disclosure. We first preserve evidence such as the URL and the date and time of each post, then consider the order in which to pursue removal and disclosure in light of how long the service provider retains its logs. We also take into account the effect on your company's reputation and employee relations.

  • Untrue posts keep appearing on a review site
  • You have saved screenshots but have not settled on a strategy
  • Someone who appears to be a former employee is posting content that includes internal information
  • Once the poster is identified, you want to decide how far to pursue claims

Why LegalAgent

With LegalAgent, you can move to removal and disclosure with the evidence preserved

We support your company's initial response in three ways: fast answers, fees you know before we start, and evidence and documents you can use as they are in the claim procedures.

  1. 01Speed

    Typical law firms3–5 business days

    LegalAgent1 business day, as a rule

    We start early, with log retention in mind

    We answer contract reviews and routine legal questions within one business day as a rule. Because service providers retain logs only for a limited period, we plan the order of the response on the premise of starting early.

  2. 02Fees

    Hourly billingTotal unknown at the start

    LegalAgentScope and fee set before we start

    We agree on the number of posts and the scope before we start

    We ask how many posts and how many media are involved, and whether a removal request is enough or you will go as far as disclosure, and give you an estimate before we start. If the procedure moves to the next stage, we update the estimate and explain it to you.

  3. 03Deliverables

    • Evidence preservation record
    • Draft removal request
    • Disclosure request documents
    • Damages claim strategy memo

    We prepare with claims after disclosure in view

    Keeping in mind a damages claim or a criminal complaint once the poster is identified, we put the evidence and documents in order from the disclosure request stage.

* Response times are for contract reviews and routine legal questions; they vary by matter.

How it works

The AI Agent organizes the posts and the timeline; attorneys decide the procedure

The AI Agent organizes the content and chronology of the posts from the URLs and screenshots you provide; attorneys judge whether the posts may infringe rights and decide the order of removal and disclosure.

AI Agentdoes the work

  • Arranges URLs, dates and times, and screenshots in a timeline
  • Extracts what each post says and the issues it raises
  • Drafts removal requests and disclosure request documents

Attorneysmake the judgment

  • Judge whether posts may amount to defamation, damage to credit or similar
  • Decide the order of removal and sender information disclosure
  • Take responsibility for the final claim documents and strategy
ConsultationConsidering claims after disclosure
  1. STEP 01Confirming the post content and evidence

    Confirm the post content and the likely infringement of rights, and check the status of evidence preservation

    Evidence preservation record and initial analysis

  2. STEP 02Considering the response strategy

    Consider whether to proceed with removal or sender information disclosure, and in what order

    Response strategy memo

  3. STEP 03Carrying out removal and sender information disclosure requests

    Prepare the removal request or disclosure request documents and proceed with the procedure

    Draft removal request, disclosure request documents

  4. STEP 04Considering the response after the poster is identified

    Prepare notices, set out the negotiation strategy and consider the options for damages claims and criminal complaints

    Draft notice, damages claim strategy memo

  • Attorneys make the final callAn attorney checks every deliverable and takes responsibility for it.
  • Your inputs are not used to train AIOn top of attorneys' statutory duty of confidentiality, we work in an environment where your inputs are not used to train AI.
  • An AI Agent built in-houseOur own engineers develop it. Information Security Policy

Use cases

Common requests and what you receive

The flow from finding a post through evidence preservation, removal requests and sender information disclosure to the response after disclosure is set out by situation.

  1. 01

    Untrue posts keep appearing on a review site

    If left aloneIf left unaddressed, business partners and job seekers may mistake the posts for fact, affecting sales opportunities and recruiting

    What we doSet out where the posts differ from the facts and preserve the evidence, then consider whether to lead with removal or sender information disclosure

    What you receive
    • Evidence preservation record
    • Draft removal request
    • Response strategy memo

  2. 02

    Someone who appears to be a former employee is posting defamatory content on social media that includes internal information

    If left aloneWhere posts contain internal information, secondary effects such as further spread of the information and unease among current employees widen

    What we doConfirm whether the posts involve internal information, and set the priority between removal and sender information disclosure and the scope of internal explanations

    What you receive
    • Evidence preservation record
    • Strategy for removal and disclosure requests
    • Internal explanation memo

  3. 03

    We want to identify an anonymous poster and consider a claim for damages

    If left aloneBecause service providers retain logs only for a limited period, a delayed response may make it difficult to obtain the sender information

    What we doSet out the choice of procedure for the sender information disclosure request and how to proceed with notices, negotiation and damages claims after disclosure

    What you receive
    • Disclosure request documents
    • Draft notice after the poster is identified
    • Damages claim strategy memo

  4. 04

    We just want the posts removed quickly

    If left alonePursuing removal alone first may cause the loss of post records and logs needed for sender information disclosure

    What we doConfirm the scope of evidence to preserve when pursuing removal, and set the order of removal and sender information disclosure

    What you receive
    • Evidence preservation record
    • Draft removal request
    • Memo on the order of response

Scope of our sender information disclosure support

From preserving evidence of posts to removal requests, sender information disclosure and the response after disclosure, our support is set out stage by stage.

Evidence preservation and initial investigation
Immediately after a post is found, we confirm evidence in a form that can be used for subsequent removal and sender information disclosure requests.
  • Preserving post content and evidence
  • Analyzing the infringement of rights
Removal requests and measures to prevent transmission
We set out removal requests to the operator of the medium where the post appears and the order relative to sender information disclosure.
  • Removal requests to platforms and site administrators
  • Setting the order of removal and sender information disclosure
Sender information disclosure requests
We review procedures under the Information Distribution Platform Act and other options in light of the post content and the state of the evidence.
  • Choosing the disclosure request procedure
  • Preparing disclosure request documents
Response after disclosure
We support notices and negotiation after the poster is identified, through to considering damages claims and criminal complaints.
  • Notices and negotiation after the poster is identified
  • Considering damages claims and criminal complaints

Our approach

What we focus on in Sender Information Disclosure

In sender information disclosure and online defamation matters, we place weight on the following perspectives.

  1. 01

    An initial response designed around evidence preservation first

    Before considering removal requests or sender information disclosure, we give top priority to preserving evidence such as the post URL, date and time of posting and screenshots, so as not to narrow the options for the subsequent response.

  2. 02

    Sequencing the response around log retention periods

    Because service providers retain logs only for a limited period, we consider whether to proceed first with removal or sender information disclosure on the premise of starting early.

  3. 03

    A response that looks ahead to the options after disclosure

    Keeping in mind the possibility of damages claims and criminal complaints once the poster is identified, we organize evidence and prepare documents at the disclosure request stage.

  4. 04

    Consideration for corporate reputation and employee relations

    We set the strategy while taking into account the reputational effect of information spreading inside and outside the company during the response, and the labor implications where the poster is an employee or former employee.

Pricing

Sender information disclosure fees

We estimate the scope of work after hearing about the post content and the state of the evidence. The scope and estimate vary with the following factors.

How fees are set

Scope and fee agreed before we start

Matter-based work is generally on a fixed fee. For complex or urgent matters, we propose a schedule and an estimate that fit the matter.

First consultation

A free 30-minute online meeting.

You can come to us before your documents are in order. Tell us what you know so far.

Free consultation

What we check before quoting

  • Number of posts requiring a response and number of media where they appear
  • Status of evidence preservation (already preserved, or still to be organized)
  • Whether a removal request alone is sufficient or sender information disclosure is also needed
  • Whether damages claims or criminal complaints are needed after the poster is identified
  • Urgency of starting in relation to log retention periods

The scope and approach vary with the post content and the state of the evidence, so we present an estimate after reviewing the details of your consultation.

Team & Record

Attorneys who know business practice handle your matters

Contract reviews and drafts
2,000+
Client companies
150+
Startup legal matters
200+
Legal and investment DD
20+

* Approximate figures based on matters handled by our firm; actual figures vary by matter.

Engineers

Shinya Makita and Sota Miya build our product on the same team as the attorneys.

Practical guides to sender information disclosure and online defamation

Online defamationResponding to Defamatory and Rights-Infringing Posts: Removal Requests and Disclosure of Sender Information

Removing a post and identifying the poster differ in both purpose and requirements. We examine preserving evidence and logs, explaining the rights infringement and distinguishing legitimate criticism, from the perspectives of both the company suffering harm and the platform operator.

Related practice areas

FAQ

Frequently asked questions

Can we consult you right after noticing a post, before deciding on a response strategy?

You can consult us right after noticing a post, even before evidence preservation is complete. We will also advise you on how to preserve the evidence.

Can we consult you if all we have is a screenshot of the post?

You can begin a consultation with just a screenshot. If there is additional information worth confirming, such as the post URL or the date and time of posting, we will let you know.

Can removal requests and sender information disclosure proceed at the same time?

Whether to proceed first with removal or to prioritize sender information disclosure depends on the post content and the state of the evidence. We set the order of the response after reviewing the details of your consultation.

Can you definitely identify an anonymous poster?

The outlook depends on the post content, the medium and the status of log retention, so identification is not always possible. Because service providers retain logs only for a limited period, starting early is likely to be important.

After the poster is identified, what can we consider besides a damages claim?

In addition to a damages claim, we also consider whether a criminal complaint is warranted. For consultations about ordinary commercial disputes apart from posting disputes, please also see the Litigation and Dispute Resolution page.

Can you handle large-scale online firestorms or company-wide crisis response?

Our focus is on removal requests and sender information disclosure for individual posts. If you need a response to large-scale reputational damage or company-wide crisis and PR response, please also see the Crisis Management and Internal Investigations page.

Can we engage you to respond to content posted on a service our company operates?

If you are considering, as the platform operator, how to respond to posts on a service your company operates, rather than being the target of a post, please also see the IT, SaaS and System Development page.

If the poster turns out to be an employee or former employee, can we also engage you for labor matters such as disciplinary action?

Our focus is on considering removal requests, sender information disclosure and damages claims. For labor matters such as disciplinary action themselves, please also see the Labor and HR page.

Contact

Talk to us about defamatory posts

Please share whatever information you can confirm at this point, such as the post URL or screenshots. You can consult us even while evidence preservation is still under way.

  • A free 30-minute online first meeting
  • You can consult us before evidence preservation is complete
  • You can consult us when all you have is screenshots