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November 13, 2022

Prevent Brand Abuse with Darktrace | Protect Your Brand

Prevent brand abuse with Darktrace's AI-powered solution. Detect and stop impersonation attacks before they harm your reputation. Read to learn more here.
Inside the SOC
Darktrace cyber analysts are world-class experts in threat intelligence, threat hunting and incident response, and provide 24/7 SOC support to thousands of Darktrace customers around the globe. Inside the SOC is exclusively authored by these experts, providing analysis of cyber incidents and threat trends, based on real-world experience in the field.
Written by
Elliot Stocker
Product SME
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13
Nov 2022

Brand abuse refers to the unauthorized imitation of an organization's brand. Its discovery is often a reminder to organizations that they need to protect more than just their data and IP – their reputation is at stake. But brand impersonation can also be used to launch a direct attack against the organization – and those around it. 

During a first demonstration meeting recently, Darktrace PREVENT discovered a website deploying a classic trick: the letters ‘rn’ were used in sequence in an attempt to imitate the letter ‘m’ in the company’s name (e.g. “exarnple-brand.com”). Whilst obvious when you’re looking out for it, for an unsuspecting employee this goes easily unnoticed. 

This website was set up by an attacker two weeks before the PREVENT demo. The website was taken down immediately, and the company was also advised to launch an internal investigation to find out if somebody had received an email from this address. The company also launched an information campaign informing their supply chain of this attack, and this last activity resulted in the discovery that one of their suppliers had been scammed through the same email domain and had transferred a large sum of money towards a shell company that was not related to the main brand. By alerting that supplier, additional money transfers were prevented.

This example is part of a broader trend being seen across the industry. ZDNET’s Fraud Trends Report found that roughly 250,000 attacks in Q2 of 2021 involved some form of brand abuse. These attacks harm companies by inflicting reputational damage, incurring financial losses from fraudulent competition, or serving as steppingstones for larger threats like supply chain attacks.

Organizations work hard to cultivate brand identities that differentiate themselves from competitors and build relationships with consumers. Yet, the stronger and more recognizable a brand is, the more often it is targeted for abuse as malicious actors take advantage of their success to reach more victims. Companies with greater online presences or international operations across multiple channels are also at higher risk. 

Brand abuse takes many forms. It can be a website designed to look like it belongs to the brand to collect personal information such as email addresses and passwords. It can be an invoice sent by a vendor with a slight typo in its name. It can be an unauthorized branded webshop that never ships products to buyers. It can be a fake social media account directing customers to malicious websites that distribute malware or spreading fake news. It can be as simple as copyright or trademark infringement.

Figure 1: The general pattern malicious actors use for brand abuse.

Responding to Brand Abuse

Reconquering brand reputation after a brand abuse incident can prove to be much more difficult and costly than investing beforehand to help secure the brand. Risk detection and monitoring require a holistic approach to cover the diverse forms of brand abuse, and requires patrolling the internet for copycats, typo squatters, and other malicious appropriations. 

Figure 2: Mapping to the stages of brand abusein Figure 1, the security team has a set of signals to look for and actions totake to stop brand abuse before it is too late.

Protecting the brand identity and external attack surface can seem like a daunting task for security teams, especially in an age where monitoring internal systems proves enough of a challenge itself. Moreover, how often should the team perform this brand abuse monitoring? Companies can try to search every six months, every quarter, even every month, however there would still be gaps between when a threat actor launches an attack and when the security team discovers it. This is when AI becomes a tremendous ally, as it works at a speed and scale that human teams cannot. 

The Power of PREVENT

PREVENT/Attack Surface ManagementTM works autonomously and continuously to uncover instances of brand abuse, and proactively hardens defenses against any attack that might be launched as a result. 

It uses AI to distinguish a company’s external assets from the rest of the global internet. Its processing features learn brand-related assets such as logos and domain names. It also leverages natural language processing and image classification algorithms to tackle even the most ambiguous and error-prone assets encountered to identify and stop copycats and typosquatters. 

PREVENT/ASM carries out this comprehensive level of monitoring continuously, closing the gap between when an attacker spins up malicious infrastructure and when the security team identifies it. With PREVENT, should an attacker create a malicious website tomorrow morning, the security team will be alerted tomorrow morning. 

In addition to identifying brand abuse, PREVENT/ASM helps the team to collect all the relevant data needed to support a Notice and Takedown procedure. It also integrates with the rest of Darktrace’s security ecosystem to ensure that cyber defense is hardened ahead of time, should malicious assets discovered by PREVENT/ASM be used to launch an attack. 

For example, identifying a webpage impersonating a brand is useful data for email security. PREVENT forewarns Darktrace/Email of malicious domains, which in turn heightens its sensitivity against emails sent from this site. The same is true with regards to network traffic as well as endpoint security: an endpoint device visiting this host will have Darktrace DETECTTM + Darktrace RESPONDTM on higher alert – ready to immediately neutralize threatening activity when it occurs. 

This is the power of the Cyber AI Loop, a virtuous feedback cycle in which AI engines continuously feed into and strengthen one another.

And PREVENT not only identifies instances of brand abuse (along with Shadow IT, misconfigurations, supply chain risk, and other vulnerabilities), but it also prioritizes these risks according to exposure and potential damage and impact. With PREVENT/End-to-EndTM using Darktrace’s understanding of every device and connection inside an organization – every user and their interactions, every possible attack path – insights from the internal and external attack surface combine to give security teams a fully informed understanding of how they can spend their time most effectively to reduce cyber risk. 

In these ways, PREVENT not only monitors for brand abuse at a scope and scale far beyond the capabilities of human security teams, but it also integrates with DETECT + RESPOND to harden a company’s cyber security. 

Inside the SOC
Darktrace cyber analysts are world-class experts in threat intelligence, threat hunting and incident response, and provide 24/7 SOC support to thousands of Darktrace customers around the globe. Inside the SOC is exclusively authored by these experts, providing analysis of cyber incidents and threat trends, based on real-world experience in the field.
Written by
Elliot Stocker
Product SME

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June 2, 2026

Stopping Stealth Attacks with Precision: How Núclea Prevented a Breach Without Disruption

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Núclea is a Brazilian data and technology company that supports the country’s financial system by delivering digital services exclusively to banks and financial institutions. Operating in an environment where trust, availability, and data integrity are critical, the company faces a threat landscape that has evolved rapidly—particularly with the rise of AI-driven cyberattacks.

Brazil has experienced a wave of successful cyber incidents targeting financial institutions, many of them enabled by insiders or compromised credentials. The result was a noticeable shift in attacker strategy: instead of focusing on end customers, threat actors began targeting the institutions and platforms that underpin the financial ecosystem itself.

“Attacks became far more directed and contextual,” explains Guilherme, who leads incident response within Núclea’s security platform engineering team. “They weren’t noisy or obviously malicious—they were precise, patient, and designed to blend into normal operations.”

That precision was on full display in January 2026, when Núclea faced one of the most convincing phishing attacks the team had seen.

A real attack, built on trust and context

The attack began with a seemingly routine email.

It was sent from a real Brazilian government institution, using legitimate infrastructure and valid credentials that were later confirmed to have been compromised. Núclea had an established, ongoing relationship with this organization, and the email’s language, tone, and subject matter aligned perfectly with the type of communication the recipient team handled every day.

Attached to the email was a PDF document containing content that looked entirely legitimate.

The problem? A single URL embedded inside that PDF.

“The message itself was correct. The sender was real. The context was familiar. Even the document content made sense,” Guilherme explains. “There was just one small element that didn’t belong.”

That small detail was enough to initiate a full attack chain.

What the attackers were trying to do

If clicked, the URL would have downloaded a malicious payload designed to:

  • Collect information about the user and device
  • Identify where the system was located within the financial ecosystem
  • Install remote access tools to maintain control
  • Deploy an infostealer to extract sensitive data
  • Execute anti-forensic scripts to erase traces of the intrusion

In other words, it was a carefully engineered operation designed for persistence and stealth, not immediate disruption.

The attack also employed urgency—a classic social engineering technique. When the link didn’t open as expected, employees requested assistance from the security team, insisting the document was important and needed to be accessed quickly.

This is precisely the kind of scenario where traditional security tools struggle: almost everything about the interaction is legitimate.

Where Darktrace made the difference

Instead of blocking the entire message or relying on known indicators of compromise, Darktrace focused on behavioral context.

Darktrace recognized:

  • That the sending organization was normally trusted
  • That the communication pattern matched historical behavior
  • That the PDF content itself was not suspicious

But it also identified that the URL embedded within the document deviated from established behavioral patterns.

Rather than disrupting business operations, Darktrace took precise action: it rewrote the URL, preventing the malicious download while leaving the rest of the email untouched.

“When we analyzed it afterward, it became clear how dangerous the attack would have been,” says Guilherme. “But it never progressed—because Darktrace acted at exactly the right point.”

Subsequent forensic analysis confirmed the payload’s malicious intent. The attack never succeeded.

Precision over disruption

For Núclea, this incident reinforced a critical lesson: modern attacks don’t always look malicious—they hide within normal activity.

“What stands out to me is the precision,” Guilherme says. “Darktrace doesn’t rely on big, obvious signals. It’s effective in situations that fall outside the standard patterns we all know.”

Building resilience in a high trust ecosystem

For Núclea, cybersecurity is not just a defensive measure—it’s a business enabler.

Availability failures or successful breaches in the financial ecosystem can have immediate, large-scale consequences, from financial loss to reputational damage. Preventing those outcomes protects not just Núclea, but its partners and customers as well.

“Cyber resilience means keeping the business running—even under attack,” Guilherme explains. “And that requires people, processes, and technology working together.”

As AI continues to accelerate both attacks and defenses, the role of security is evolving. Precision, behavioral understanding, and intelligent automation are no longer optional—they’re essential.

“The easy days were yesterday,” Guilherme says. “The challenges ahead are bigger. We need to be prepared—internally and with partners that help us build resilience.”

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June 1, 2026

Defend What You Trust: Stories from the Front Lines of Modern Cyber Defense

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Modern attacks don’t always announce themselves, follow obvious patterns, or rely on known malware. Often, they move quietly inside trusted systems, authenticated sessions, and everyday behavior.

They don’t break in. They blend in.

That’s why an AI-powered defense is essential. It turns invisible signals into actionable insights at a scale neither analysts nor traditional tools can achieve alone.

Confidence is creating risk

One of the most dangerous assumptions in cybersecurity today is that strong controls equal strong protection.

Multi-factor authentication (MFA), for example, is widely viewed as a foundational safeguard. But as the CISO for a professional sports organization explains, that confidence can be misplaced. “A lot of organizations assume that once you have MFA, those accounts are safe. That’s not true.”

In one instance, his team identified a sophisticated attack where a threat actor bypassed MFA entirely, not by breaking it, but by going around it. A user’s authenticated session was hijacked and re-used, allowing the attacker to impersonate them without triggering traditional controls.

“Darktrace picked up that a session had been re-injected by the hacker, and we were able to block it right away,” he explains.

Attackers anticipate what we miss

Even well-trained users can become entry points.

“An email bypassed our existing security tools,” shares the VP of IT at a U.S.-based risk management services provider.  “The user missed one signal and entered their credentials into a malicious site. That’s what the bad guys count on.”

The organization responded quickly, but not before damage was done. Crucially, this occurred while Darktrace was in “watch mode,” before autonomous response was fully enabled. “Darktrace would have seen that and shut it down immediately,” he notes.

Mistakes and oversights like misconfigurations, forgotten machines, and missed patches can create serious vulnerabilities.

The CIO of a utility services organization shares an instance when Darktrace detected a breach to a client’s network via their ZTNA VPN due to misconfigured MFA. “Darktrace alerted us and autonomously blocked the scanning, preventing what could have been a ransomware-type incident.”  

The most dangerous threats are already inside

The Head of Security at a global business services provider knows firsthand how blind spots can persist inside environments. His team uncovered evidence of dormant ransomware artifacts sitting unnoticed within a company’s environment ¬¬– long before modern detection was in place.

“During a routine file transfer, Darktrace flagged the suspicious activity, identified the ransomware, and immediately quarantined the server,” he recalls.  While the attack was never executed, the implication was significant: the risk existed long before it was finally detected.

Cyber threats are also successful because they take advantage of normal human behavior, exploiting moments of cognitive overload, urgency, and trust.

The Executive Director of IT and Business Applications at a pharmaceutical lab describes the time Darktrace flagged an employee logging into Microsoft 365 from Singapore, despite him being physically located in the U.S. Darktrace immediately cut off his access and within minutes revealed that the employee’s son was using a VPN to play a video game.

While the threat was benign, it demonstrated the strength of AI to use contextual information to detect threats other tools miss. The information also saved security analysts hours of investigation and minimized downtime for the employee. “That level of precision and speed isn’t just convenient, it’s game changing.”

“Unusual” behavior is the new red flag

Detecting modern threats requires an understanding of what “normal” looks like and recognizing when something subtly deviates.

One security leader  at an AI technology enterprise described a scenario in which an employee connected to a proxy service in China. The service itself was legitimate, and although traditional tools didn’t flag it, the behavior was unusual for that user specifically.

“That’s what Darktrace picked up on. The activity turned out to be benign, but without visibility into behavioral deviations, it could just as easily have been something more serious.”

AI shifts defense from reaction to anticipation

These stories point to a fundamental shift by cyber attackers, both tactically and strategically. Because traditional security tools were built to detect what’s already known, modern attacks are often:

  • Credential-based, not malware-based
  • Behavioral, not signature-based
  • Subtle, not overt

They may operate within the boundaries of what appears normal, exploiting what organizations trust, not what they block:

  • Trusted sessions
  • Legitimate services
  • Human error

This is where AI is changing the equation. Rather than relying on predefined rules or known threat signatures, AI can:

  • Establish a baseline of normal behavior
  • Detect subtle anomalies in real time
  • Act autonomously to contain potential threats

Resilience, not perfection, is the new security standard

As these frontline experiences show, the organizations that lead are those that move beyond reactive defense and embrace AI as a core part of their strategy.

It eliminates the blind spots and uncertainty, says the CISO of a professional sports organization. “If you lack visibility, you’re not managing risk, you’re assuming it. AI gives you the actionable insights needed to turn uncertainty into control.”

And it provides the speed and agility that are vital when seconds matter, says the Executive Director of IT and Business Applications. “When Darktrace alerted us at 3:00 am to a ransomware attack, it had already quarantined the affected systems, blocked the attacker’s access, and provided us with the critical details and time needed to investigate. That action likely saved us hundreds of thousands, if not millions, of dollars.”

The modern SOC has become a cornerstone of enterprise resilience, responsible for protecting data and operational continuity while enabling digital growth and innovation. For today’s security professional, that means success is no longer measured by what they keep out, but by what they protect: revenue, reputation, and trust.

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