What steps can be taken to combat phishing attacks using cousin domains?

Summary

Combating phishing attacks using cousin domains requires a comprehensive, multi-layered strategy. This includes proactive domain monitoring for early detection and rapid takedown of fraudulent domains. Contributing to domain-based blacklists (Openphish, Phishtank, URIBL, SURBL) and reporting phishing sites to APWG and Google Safe Browsing are critical. Implementing email authentication protocols (DMARC, SPF, DKIM) prevents spoofing, while educating users through security awareness training and establishing clear brand guidelines reduces the success rate of attacks. Employing advanced threat detection and multi-factor authentication provides further protection. Developing a cybersecurity framework and incident response plan ensures quick identification and recovery. Furthermore, it's important to be cautious about reporting to Cloudflare due to their potential doxing practices, and to understand that UDRP may not always be the most effective solution.

Key findings

  • Proactive Monitoring is Key: Continuous domain and brand monitoring are crucial for early detection of cousin domain phishing.
  • Blacklisting and Reporting: Adding domains to blacklists and reporting phishing sites enhances community protection.
  • Email Authentication: Implementing DMARC, SPF, and DKIM protects against email spoofing.
  • User Education Matters: Training and clear brand guidelines empower users to recognize and avoid phishing.
  • Multiple Layers of Defense: Advanced threat detection and multi-factor authentication provide additional security.
  • Incident Response: A comprehensive cybersecurity framework ensures quick incident response and recovery.
  • Takedown Effectiveness: Direct takedowns of cousin domains are less effective compared to proactive monitoring and reporting.

Key considerations

  • Investment in Monitoring Tools: Prioritize investment in tools for continuous domain and brand monitoring.
  • Relationship Building with Blacklists: Establish relationships with domain blacklisting services to expedite the addition of malicious domains.
  • Regular Training and Updates: Provide regular security awareness training and keep brand guidelines up-to-date.
  • Comprehensive Security Framework: Develop a comprehensive cybersecurity framework with clearly defined incident response procedures.
  • Cloudflare Alternatives: Seek alternative abuse reporting services that prioritize reporter safety and anonymity.
  • Resource Allocation: Allocate resources efficiently, prioritizing proactive measures over potentially less effective direct takedowns.
  • Ongoing Vigilance: Maintain ongoing vigilance and adapt strategies as phishing techniques evolve.

What email marketers say
13Marketer opinions

Combating phishing attacks using cousin domains requires a multi-faceted approach. Key strategies include proactive domain monitoring to identify and takedown fraudulent domains, implementing email authentication protocols (DMARC, SPF, DKIM) to prevent spoofing, educating users through security awareness training, and employing advanced threat detection technologies. Reporting suspicious domains to blocklists and domain registrars is crucial, along with establishing clear brand guidelines and implementing multi-factor authentication. Continuous monitoring of social media and newly registered domains, coupled with raising awareness about phishing risks, significantly reduces the attack success rate. Swift takedown actions protect brand reputation and prevent customer deception.

Key opinions

  • Domain Monitoring: Continuous monitoring and swift takedown of cousin domains are essential for brand protection.
  • Email Authentication: Implementing DMARC, SPF, and DKIM protocols prevents domain spoofing in phishing emails.
  • User Education: Security awareness training and clear brand guidelines enhance user recognition of phishing attempts.
  • Threat Detection: Advanced technologies block malicious URLs and attachments, preventing phishing attacks.
  • Reporting: Reporting suspicious domains to URL blocklists and registrars contributes to collective defense.
  • Multi-Factor Authentication: Multi-factor authentication prevents unauthorized access even if credentials are compromised.

Key considerations

  • Proactive Monitoring: Implement continuous monitoring of domain registrations, social media, and brand mentions to detect impersonation early.
  • Rapid Response: Establish procedures for rapid takedown of identified fraudulent domains to minimize potential damage.
  • User Training: Regularly train employees to recognize phishing emails and simulated attacks to enhance awareness.
  • Technology Investment: Invest in advanced threat detection technologies to proactively block malicious URLs and attachments.
  • Brand Guidelines: Develop clear brand guidelines and communication styles to enable users to easily identify legitimate emails.
  • Authentication Protocols: Ensure robust email authentication protocols are in place to prevent attackers from spoofing your domain.
Marketer view

Marketer from Email Geeks says that submitting to URL blocklists if they have data on the cousin domains would be their main action point.

April 2021 - Email Geeks
Marketer view

Email marketer from security-forums.com shares that setting up domain monitoring alerts for newly registered domains containing your brand name or common misspellings can provide early warnings of potential phishing attempts.

October 2022 - security-forums.com
Marketer view

Marketer from Email Geeks suggests abuse report to domain registrar, and also to call the company to alert them.

April 2022 - Email Geeks
Marketer view

Marketer from Email Geeks mentions Google Safe Browsing can be submitted here: <https://safebrowsing.google.com/safebrowsing/report_phish/?hl=en> and Cloudflare as well if there is a web domain hiding behind them: <https://developers.cloudflare.com/fundamentals/reference/report-abuse/>.

April 2024 - Email Geeks
Marketer view

Email marketer from VadeSecure explains that employing advanced threat detection technologies to block malicious URLs and attachments in emails helps prevent phishing attacks from reaching end-users.

March 2023 - vadesecure.com
Marketer view

Email marketer from sentrybay.com explains that implementing multi-factor authentication (MFA) can prevent unauthorized access even if credentials are compromised through phishing.

March 2025 - sentrybay.com
Marketer view

Email marketer from Mimecast explains that security awareness training for employees, including simulated phishing attacks, improves their ability to recognize and report phishing attempts.

August 2022 - mimecast.com
Marketer view

Email marketer from Proofpoint shares that implementing DMARC, SPF, and DKIM email authentication protocols can help prevent attackers from spoofing your domain in phishing emails.

December 2023 - proofpoint.com
Marketer view

Email marketer from Agari explains establishing clear brand guidelines for communications helps users identify legitimate emails and spot phishing attempts that deviate from these guidelines.

November 2024 - proofpoint.com
Marketer view

Email marketer from redpoints.com explains that implementing brand monitoring to detect fraudulent domains, combined with swift takedown actions, helps protect brand reputation and prevent customer deception.

June 2022 - redpoints.com
Marketer view

Email marketer from zerofox.com explains that continuous monitoring of domain registrations and social media for brand impersonation is crucial. They recommend using automated tools to identify and flag suspicious domains quickly.

August 2022 - zerofox.com
Marketer view

Email marketer from Reddit shares that educating users within the organization about the risks of phishing and how to identify suspicious emails can significantly reduce the success rate of phishing attacks.

June 2022 - Reddit
Marketer view

Email marketer from phishlabs.com explains that a comprehensive approach involves monitoring for cousin domains, typosquatting, and brand impersonation, followed by rapid takedown of identified threats to mitigate potential damage.

December 2023 - phishlabs.com

What the experts say
5Expert opinions

Combating phishing attacks involving cousin domains requires proactive monitoring and strategic reporting. While direct takedowns may be ineffective due to rapid domain rotation, adding cousin domains to domain-based blacklists, such as Openphish, Phishtank, URIBL, and SURBL, is recommended. Reporting to APWG and setting up domain monitoring alerts for brand name variations are also crucial. It is important to avoid Cloudflare for abuse reporting due to their practice of doxing reporters.

Key opinions

  • Ineffectiveness of Direct Takedowns: Direct takedowns of cousin domains are generally ineffective because attackers can quickly rotate domains.
  • Domain Blacklisting: Adding cousin domains to blacklists like Openphish and Phishtank is a valuable strategy.
  • Proactive Monitoring: Continuous domain monitoring with alerts for brand name variations is essential for early detection.
  • Reporting Resources: APWG provides a platform for reporting phishing and contributes to collaborative defense efforts.
  • Cloudflare Caution: Cloudflare's abuse reporting practices can be detrimental due to doxing reporters.

Key considerations

  • Resource Allocation: Prioritize efforts towards monitoring and blacklisting over direct takedowns due to the rapid rotation of cousin domains.
  • Alert Setup: Configure domain monitoring alerts to capture common misspellings and brand name variations.
  • Reporting Accuracy: Ensure accurate and timely reporting of phishing domains to relevant blacklists and resources.
  • Alternative Services: Seek alternative services for abuse reporting that prioritize the safety and anonymity of reporters.
  • Blacklist relations: Explore getting an "in" with Google Safe Browsing.
Expert view

Expert from Email Geeks suggests Openphish and Phishtank. Mentions that URIBL and SURBL might be amenable to having a trusted reporter give them domains. Also suggests getting an in to Google Safe Browsing.

May 2021 - Email Geeks
Expert view

Expert from Email Geeks shares that going for a takedown of the domains isn’t going to help, as they can rotate cousin domains far faster than that process. Suggests getting the cousin domains added to some domain-based blacklists.

August 2021 - Email Geeks
Expert view

Expert from Email Geeks warns that Cloudflare’s usual handling of abuse is to dox the reporter to the abuser and take no other action and to never interact with them.

May 2022 - Email Geeks
Expert view

Expert from Word to the Wise explains that continuous domain monitoring to identify newly registered cousin domains is crucial. Set up alerts for variations of your brand name to proactively detect potential phishing sites. This allows for early intervention and potential takedown requests before damage occurs.

December 2022 - Word to the Wise
Expert view

Marketer from Email Geeks suggests <https://apwg.org/reportphishing/>.

April 2021 - Email Geeks

What the documentation says
5Technical articles

Combating phishing attacks using cousin domains involves a combination of dispute resolution, reporting, user education, and incident response planning. ICANN's UDRP can address trademark infringements, but may not be suitable for subtle phishing attempts. Reporting to APWG and Google Safe Browsing helps add phishing sites to blocklists, protecting users. Educating consumers to avoid sharing sensitive information via email is crucial, and developing a cybersecurity framework with incident response plans aids in quick identification and recovery from phishing incidents.

Key findings

  • UDRP Limitations: ICANN's UDRP is useful for clear trademark violations but less effective for subtle cousin domain phishing.
  • Reporting Benefits: Reporting to APWG and Google Safe Browsing adds phishing sites to blocklists, enhancing protection.
  • Consumer Awareness: Educating consumers to avoid sharing sensitive information is a key preventative measure.
  • Incident Response: A cybersecurity framework with incident response plans helps in quickly identifying and recovering from phishing.

Key considerations

  • Trademark Strength: Assess the strength of trademark infringement when considering UDRP for cousin domain phishing.
  • Reporting Strategy: Establish a process for regularly reporting suspicious domains to APWG and Google Safe Browsing.
  • Educational Programs: Implement user education programs emphasizing the dangers of sharing sensitive information via email.
  • Framework Development: Develop a comprehensive cybersecurity framework that includes incident response plans for phishing attacks.
Technical article

Documentation from apwg.org shares that reporting phishing sites to the APWG helps in aggregating and distributing phishing data to blocklists and security vendors, contributing to a collective defense.

May 2022 - apwg.org
Technical article

Documentation from safebrowsing.google.com explains that reporting suspected phishing sites to Google Safe Browsing can help protect users by adding these sites to Google's blocklist, warning users before they visit the site.

March 2024 - safebrowsing.google.com
Technical article

Documentation from consumer.ftc.gov explains that consumers should be aware that legitimate organizations will not ask for sensitive information via email. Never provide personal or financial information in response to an unsolicited email.

September 2024 - consumer.ftc.gov
Technical article

Documentation from icann.org explains that utilizing the Uniform Domain-Name Dispute-Resolution Policy (UDRP) can help in recovering domains that infringe on trademarks, though this might be more applicable to clear trademark violations than subtle cousin domain phishing attempts.

July 2021 - icann.org
Technical article

Documentation from nist.gov explains that developing a cybersecurity framework with incident response plans helps organizations quickly identify, contain, and recover from phishing incidents.

June 2024 - nist.gov