This image of a Soviet-era spacesuit illustrates our discussion topic: .su websites, their relevance to your domain cyberthreat landscape, and strategies for protecting yourself and your team.

Are .su Websites Safe?

Summary: The rise in scams, high-profile cyberattacks, and enforcement issues surrounding .su websites makes them a persistent threat for modern organizations. Sanctions and registration challenges make them harder to register and enforce against, but Corporate Domain Management helps monitor and mitigate risks associated with these Soviet-era domains.  

Are scammers impersonating you on .su websites? Find out now with a free domain scan

What does .su mean? 

International brands often use country-code top-level domains (ccTLDs) like .co.uk or .ca, or newer generic TLDs like .fast and .shop, to protect their online presence and expand into new markets. As luck would have it, cybercriminals exploit both channels. Impersonators and phishing attackers leverage new and existing domain extensions to spoof organizations and trick their innocent visitors. Among these, the .su domain stands out as a relic of the Soviet Union that still lingers in cyberspace, posing unique risks to brand integrity.  

This image of a chess player in Soviet-style dress illustrates our discussion topic: .su websites, their relevance to your domain cyberthreat landscape, and strategies for protecting yourself and your team.

High-profile threats linked to .su websites range from breach data forums to sophisticated phishing campaigns, all the way down to websites impersonating the target’s commercial business.. In this guide, we dissect the nuances of these dangers and outline strategies to combat them effectively.  

What are .su domains?

Authorities originally assigned the .su domain to the Soviet Union in 1990, just before its dissolution. Despite the USSR’s collapse just a year later, the domain remained active, managed by the Russian Institute for Development of Public Networks. Today, geopolitical tensions, particularly the Russia-Ukraine conflict and resulting sanctions, have made .su domains harder to register and even harder to enforce against.  

Andre Stadelmaier, our Senior Director of Sales and resident domain expert, notes that: “.su websites certainly are a worry for modern organizations. At the moment, they are more difficult to register for clients due to the international sanctions. Enforcement and takedowns would usually be advisable from a defensive perspective. Unfortunately, enforcing against them is certainly less successful compared with our usual enforcement work.”  

As Andre outlines, the difficulty registering .su domains make it harder for new scammers to exploit. However, the legacy of existing impersonations and malicious domains across the online landscape makes .su a lingering concern. Their historical ties and limited regulatory oversight pose all kinds of threats to organizations around the world. 

Threats from .su Websites 

According to a report from The Guardian, scams linked to .su domains doubled in recent years, even surpassing .ru and other Cyrillic domains in malicious activity. One of the most infamous cases involved Exposed.su, a site that allegedly leaked sensitive credit records of high-profile figures, including Michelle Obama, Mitt Romney, Donald Trump, and celebrities like Britney Spears, Jay-Z, Beyoncé, and Tiger Woods.  

Konrad Dudzinski, our Chief Intellectual Property Officer, adds that “.su domains have been one of the most problematic extensions, with lots of scams. New registrations for .su websites should already be blocked, yet I see that the domain is still active, at least for the next five years.”   

This image of a Cyrillic typewriter illustrates our discussion topic: .su websites, their relevance to your domain cyberthreat landscape, and strategies for protecting yourself and your team.

Despite ICANN’s plans to retire the .su domain by 2030, its current availability means organizations must remain vigilant against potential misuse.  

What Can We Do About .su Websites? 

Manually searching for your brand name alongside the .su extension may uncover some impersonations worth looking into. That being said, this method won’t uncover every threat online. Breach data may lurk under URLs unrelated to your brand, and scammers use subdomains to evade your searches. Even if you do uncover some malicious .su websites yourself, taking any action about them poses its own challenges. Already slow reporting and mitigation mechanisms slow to a halt in the face of international sanctions. However, more comprehensive and automated domain tools often yield better results. 

This is where Corporate Domain Management comes in. Advanced monitoring solutions can detect domain impersonations, typosquatting, and even unrelated URLs hosting malicious content. Real-time tracking of changes, such as newly added mail servers or payment systems, helps identify threats before they escalate. Enforcement actions, including cease-and-desist notices and UDRP complaints, may not always yield immediate results with .su domains, but they provide valuable insights and strengthen defensive strategies across all suspicious extensions, ccTLDs, and beyond.  

Conclusions: What’s Next? 

Clearly, .su websites remain a niche but persistent threat, shaped by historical legacy and geopolitical complexities. With the .su extension’s retirement at least five years over the horizon, organizations must stay proactive in monitoring and mitigating risks across all domain extensions.  

This image of a Soviet-era statue illustrates our discussion topic: .su websites, their relevance to your domain cyberthreat landscape, and strategies for protecting yourself and your team.

For further insights into dangerous ccTLDs, explore our blog on the Top Ten Most Risky Country-Code Domains. Understanding the nuances of domain monitoring and enforcement is critical in today’s digital landscape, where discovering and tracking malicious content can mean the difference between security and compromise.  

Want to make the most of your insights about .su domains? Get a free domain audit today and safeguard your brand against emerging threats. 

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