Combatting fraud is an ongoing challenge, and AI has increased the speed and scale of attacks. That makes it more important than ever to be diligent and quick to respond when fraud vectors are identified. 

Fraudsters commonly register look-alike domains that mimic an organization’s legitimate domain for use in fraudulent websites or email accounts. These domains are frequently used to impersonate private capital firms in investment scams, as well as businesses across a wide range of industries.

Fortunately, domain name monitoring services can help spot these issues early. This article offers a practical guide to steps sponsors and portfolio companies alike can take to identify and disrupt any fraudulent look-alike domains they identify.

Taking Down Fraudulent Domains

Step One: Identify the Service Providers

The first task in taking down a fraudulent domain, website or email account is to determine which service providers the fraudsters are using to support their activities. Registrars manage the domain registration; hosting providers store the website; and email providers carry messages sent from the domain.

Some fraudsters will use one company for all three services, but more sophisticated actors may use different service providers for each part of the scheme. In addition, social media platforms may host accounts or content used to support the fraudulent scheme.

Registrars. ICANN, which coordinates the Internet’s unique identifier systems, including domain names and IP addresses, offers a free tool to identify registrars and their abuse contact information. The registrar may also maintain an abuse reporting form on its website. Although the identity of the registrant might be redacted or withheld, a report can still be submitted to the registrar identifying the fraudulent domain.

ICANN-accredited registrars must maintain an accessible abuse channel, acknowledge reports and investigate them promptly. In practice, responsiveness can vary significantly between registrars, but sending and documenting an abuse report is an important first step.

If the registrar does not act following the abuse report, it may be possible to escalate the matter to the registrar’s legal or trust-and-safety team. If the registrar does not act, a report can also be submitted to the appropriate registry operator responsible for the domain’s top-level domain, such as .com or .org. ICANN’s Registry Listings identify the operators of generic top-level domains. Most registry operators publish an abuse contact and, when presented with actionable evidence of abuse and inaction by a registrar, will take appropriate direct action.

Hosting Providers. The ICANN lookup results will also include the domain’s nameserver or “NS” records. These records may reveal the hosting provider, although additional research man be required to identify it. If the provider differs from the registrar, it should be sent a separate abuse report.

Live scam or phishing websites can also be reported to Google Safe Browsing and Microsoft SmartScreen. Those services do not suspend the domain, but they may generate browser warnings and reduce victim traffic. Both maintain public unsafe-site reporting channels.

Email Providers. A domain may be set up for email even if no website is active. The email provider can be identified through the domain’s mail exchange, or “MX” records. Google offers a tool that can locate MX records, as does MX Toolbox. The results will often identify the provider, although additional research may be required.

Social Media Platforms. A search of the domain name may identify social media or other accounts associated with the fraudulent activity. The fraudulent website may itself contain links to these accounts. Most major social media platforms have an abuse reporting mechanism, often outlined in their terms of service.

Step Two: Submit Effective Abuse Reports

Once the relevant service providers have been identified, each should receive a targeted abuse report. The reports should contain a short cover message and screenshots or other evidence of fraudulent activity. It is important to preserve copies of all evidence before sending reports because the underlying website, account or messages may disappear quickly. Assume the complaint may be forwarded to the provider’s customer. Reports should therefore exclude unnecessary personal information, confidential deal details and internal confidential or privileged information.

An effective abuse report will identify:

• the exact domain, URLs, sending addresses and reply-to addresses;
• the impersonated company and its legitimate domain;
• representative screenshots, messages, email headers and dates;
• the misconduct and threatened harm, including references to the provider’s terms of service and abuse policies where possible; and
• the precise action requested, such as suspension of the domain, website or account.

The focus of the report should be phishing, fraud and impersonation, rather than trademark infringement. Trademark registrations or the company’s legitimate domain name should only be used to support the report, because registrars and other platforms ordinarily will not take unilateral action in a dispute framed solely as trademark or other intellectual property infringement, deferring instead to processes such as proceedings under ICANN’s Uniform Domain-Name Dispute-Resolution Policy (UDRP). Leading instead with allegations and evidence of active phishing, fraud or impersonation, rather than framing the matter as an intellectual property dispute, may facilitate a faster response.

The requested relief should be tailored to the provider. A registrar can be asked to suspend the domain, impose an appropriate hold or transfer lock and preserve account records. A hosting provider can be asked to disable the site. An email provider can be asked to suspend the account, and a social media platform or messaging provider can be asked to disable the fraudulent account.

Do not wait for one provider to respond before contacting others. Submit all reports as close together as possible, and keep a log of recipients, ticket numbers, acknowledgments, follow-ups and results.

These informal actions can disrupt a fraudulent campaign quickly but generally will not provide permanent control of the domain. A UDRP proceeding can be used to secure transfer of a domain name registration, while a claim under the Anti-Cybersquatting Consumer Protection Act, 15 U.S.C. § 1125(d), may be necessary for judicial relief in the United States. Considering those longer-term remedies should not delay immediate provider outreach.

Establishing a Portfolio-Wide Protection Playbook

Sponsors can promote best practices across their portfolio companies by maintaining a common intake and escalation process for fraudulent domains and impersonation schemes. The playbook can designate who is responsible for preserving evidence; identifying the registrar, the hosting provider and the email provider; authorizing outreach; and determining whether banks, insurers, investors, lenders or law enforcement should be notified.

To ensure consistent documentation, the playbook can contain a template worksheet that includes the fraudulent domain, the registrar, the hosting provider, the email provider, other relevant platforms, abuse-report links and the status of each report.

An effective response framework is best paired with domain-name monitoring and sound recordkeeping around the company’s intellectual property and digital assets. Authentic domain records, trademark records, brand-owner authorizations and current internal and external contacts should be kept readily available.

Today’s sophisticated threat actors pursue targets of opportunity. Heightened readiness is therefore appropriate around acquisitions, financings, capital calls, leadership changes and other events that provide fraudsters with a credible pretext for outreach. Fraudsters also exploit current events and technological developments to make their communications more credible, including by posing as providers of urgent software or security updates. Having processes in place to monitor and respond to fraudulent impersonation is an important component of fraud prevention planning for sponsors and portfolio companies alike.

Private Equity Report Fall 2026, Vol 26, No 3