Brand, website, and corporate mailout impersonation is becoming an increasingly common technique used by cybercriminals. The World Intellectual Property Organization (WIPO) reported a spike in such incidents in 2025. While tech companies and consumer brands are the most frequent targets, every industry in every country is generally at risk. The only thing that changes is how the imposters exploit the fakes In practice, we typically see the following attack scenarios:

• Luring clients and customers to a fake website to harvest login credentials for the real online store, or to steal payment details for direct theft.
• Luring employees and business partners to a fake corporate login portal to acquire legitimate credentials for infiltrating the corporate network.
• Prompting clients and customers to contact the scammers under various pretexts: getting tech support, processing a refund, entering a prize giveaway, or claiming compensation for public events involving the brand. The goal is to then swindle the victims out of as much money as possible.
• Luring business partners and employees to specially crafted pages that mimic internal company systems, to get them to approve a payment or redirect a legitimate payment to the scammers.
• Prompting clients, business partners, and employees to download malware — most often an infostealer — disguised as corporate software from a fake company website.

The words “luring” and “prompting” here imply a whole toolbox of tactics: email, messages in chat apps, social media posts that look like official ads, lookalike websites promoted through SEO tools, and even paid ads.

These schemes all share two common features. First, the attackers exploit the organization’s brand, and strive to mimic its official website, domain name, and corporate style of emails, ads, and social media posts. And the forgery doesn’t have to be flawless — just convincing enough for at least some of business partners and customers. Second, while the organization and its online resources aren’t targeted directly, the impact on them is still significant.

Business damage from brand impersonation

When fakes are crafted to target employees, an attack can lead to direct financial loss. An employee might be persuaded to transfer company funds, or their credentials could be used to steal confidential information or launch a ransomware attack.

Attacks on customers don’t typically imply direct damage to the company’s coffers, but they cause substantial indirect harm in the following areas:

• Strain on customer support. Customers who “bought” a product on a fake site will likely bring their issues to the real customer support team. Convincing them that they never actually placed an order is tough, making each case a major time waster for multiple support agents.
• Reputational damage. Defrauded customers often blame the brand for failing to protect them from the scam, and also expect compensation. According to a European survey, around half of affected buyers expect payouts and may stop using the company’s services — often sharing their negative experience on social media. This is especially damaging if the victims include public figures or anyone with a large following.
• Unplanned response costs. Depending on the specifics and scale of an attack, an affected company might need digital forensics and incident response (DFIR) services, as well as consultants specializing in consumer law, intellectual property, cybersecurity, and crisis PR.
• Increased insurance premiums. Companies that insure businesses against cyber-incidents factor in fallout from brand impersonation. An increased risk profile may be reflected in a higher premium for a business.
• Degraded website performance and rising ad costs. If criminals run paid ads using a brand’s name, they siphon traffic away from its official site. Furthermore, if a company pays to advertise its site, the cost per click rises due to the increased competition. This is a particularly acute problem for IT companies selling online services, but it’s also relevant for retail brands.
• Long-term metric decline. This includes drops in sales volume, market share, and market capitalization. These are all consequences of lost trust from customers and business partners following major incidents.

Does insurance cover the damage?

Popular cyber-risk insurance policies typically only cover costs directly tied to incidents explicitly defined in the policy — think data loss, business interruption, IT system compromise, and the like. Fake domains and web pages don’t directly damage a company’s IT systems, so they’re usually not covered by standard insurance. Reputational losses and the act of impersonation itself are separate insurance risks, requiring expanded coverage for this scenario specifically.

Of the indirect losses we’ve listed above, standard insurance might cover DFIR expenses and, in some cases, extra customer support costs (if the situation is recognized as an insured event). Voluntary customer reimbursements, lost sales, and reputational damage are almost certainly not covered.

What to do if your company is attacked by clones

If you find out someone is using your brand’s name for fraud, it makes sense to do the following:

• Send clear, straightforward notifications to your customers explaining what happened, what measures are being taken, and how to verify the authenticity of official websites, emails, and other communications.
• Create a simple “trust center” page listing your official domains, social media accounts, app store links, and support contacts. Make it easy to find and keep it updated.
• Monitor new registrations of social media pages and domain names that contain your brand names to spot the clones before an attack kicks off.
• Follow a takedown procedure. This involves gathering evidence, filing complaints with domain registrars, hosting providers, and social media administrators, then tracking the status until the fakes are fully removed. For a complete and accurate record of violations, preserve URLs, screenshots, metadata, and the date and time of discovery. Ideally, also examine the source code of fake pages, as it might contain clues pointing to other components of the criminal operation.
• Add a simple customer reporting form for suspicious sites or messages to your official website and/or branded app. This helps you learn about problems early.
• Coordinate activities between your legal, cybersecurity, and marketing teams. This ensures a consistent, unified, and effective response.

How to defend against brand impersonation attacks

While the open nature of the internet and the specifics of these attacks make preventing them outright impossible, a business can stay on top of new fakes and have the tools ready to fight back.

• Continuously monitor for suspicious public activity using specialized monitoring services. The most obvious indicator is the registration of domains similar to your brand name, but there are others — like someone buying databases related to your organization on the dark web. Comprehensive monitoring of all platforms is best outsourced to a specialized service provider, such as Kaspersky Digital Footprint Intelligence (DFI).
• The quickest and simplest way to take down a fake website or social media profile is to file a trademark infringement complaint. Make sure your portfolio of registered trademarks is robust enough to file complaints under UDRP procedures before you need it.
• When you discover fakes, deploy UDRP procedures promptly to have the fake domains transferred or removed. For social media, follow the platform’s specific infringement procedure — easily found by searching for “[social media name] trademark infringement” (for example, “LinkedIn trademark infringement”). Transferring the domain to the legitimate owner is preferred over deletion, as it prevents scammers from simply re-registering it. Many continuous monitoring services, such as Kaspersky Digital Footprint Intelligence, also offer a rapid takedown service, filing complaints on the protected brand’s behalf.
• Act quickly to block fake domains on your corporate systems. This won’t protect partners or customers, but it’ll throw a wrench into attacks targeting your own employees.
• Consider proactively registering your company’s website name and common variations (for example, with and without hyphens) in all major top-level domains, such as .com, and local extensions. This helps protect partners and customers from common typos and simple copycat sites.

Blogs

Blog

Insider Threats: Turning 2025 Intelligence into a 2026 Defense Strategy

In this post, we break down the 91,321 instances of insider activity observed by Flashpoint in 2025, examine the top five cases that defined the year, and provide the technical and behavioral red flags your team needs to monitor in 2026.

SHARE THIS:

Flashpoint Intel Team

January 15, 2026

Table Of Contents

Table of Contents

By the Numbers: Mapping the 2025 Insider Threat Landscape

5 Notable Insider Threat Cases of 2025

Catching the Warning Signs Early

Insider Threats: What to Expect in 2026

More

Every organization houses sensitive assets that threat actors actively seek. Whether it is proprietary trade secrets, intellectual property, or the personally identifiable information (PII) of employees and customers, these datasets are the lifeblood of the modern enterprise—and highly lucrative commodities within the illicit underground.

In 2025, Flashpoint observed 91,321 instances of insider recruiting, advertising, and threat actor discussions involving insider-related illicit activity. This underscores a critical reality—it is far more efficient for threat actors to recruit an “insider” to circumvent multi-million dollar security stacks than it is to develop a complex exploit from the outside. 

An insider threat, any individual with authorized access, possesses the unique ability to bypass traditional security gates. Whether driven by financial gain, ideological grievances, or simple human error, insiders can potentially compromise a system with a single keystroke. To protect our customers from this internal risk, Flashpoint monitors the illicit forums and marketplaces where these threats are being solicited. 

In this post, we unpack the evolving insider threat landscape and what it means for your security strategy in 2026. By analyzing the volume of recruitment activity and the specific industries being targeted, organizations can move from a reactive posture to a proactive defense.

By the Numbers: Mapping the 2025 Insider Threat Landscape

Last year, Flashpoint collected and researched:

• 91,321 posts of insider solicitation and service advertising
• 10,475 channels containing insider-related illicit activity
• 17,612 total authors

On average, 1,162 insider-related posts were published per month, with Telegram continuing to be one of the most prominent mediums for insiders and threat actors to identify and collaborate with each other. Analysts also identified instances of extortionist groups targeting employees at organizations to financially motivate them to become insiders.

Insider Threat Landscape by Industry

The telecommunications industry observed the most insider-related activity in 2025. This is due to the industry’s central role in identity verification and its status as the primary target for SIM swapping—a fraudulent technique where threat actors convince employees of a mobile carrier to link a victim’s phone number to a SIM card controlled by the attacker. This allows the threat actor to receive all the victim’s calls and texts, allowing them to bypass SMS-based two-factor authentication.

Flashpoint analysts identified 12,783 notable posts where the level of detail or the specific target was particularly concerning.

Top Industries for Insiders Advertising Services (Supply):

1. Telecom
2. Financial
3. Retail
4. Technology

Top Industries for Threat Actors Soliciting Access (Demand):

1. Technology
2. Financial
3. Telecom
4. Retail

6 Notable Insider Threat Cases of 2025

The following cases highlight the variety of ways insiders impacted enterprise systems this year, ranging from intentional fraud to massive technical oversights.

Type of Incident	Description
Malicious	Approximately nine employees accessed the personal information of over 94,000 individuals, making illegal purchases using changed food stamp cards.
Nonmalicious	An unprotected database belonging to a Chinese IoT firm leaked 2.7 billion records, exposing 1.17 TB of sensitive data and plaintext passwords.
Malicious	An insider at a well-known cybersecurity organization was terminated after sharing screenshots of internal dashboards with the Scattered Lapsus$ Hunters threat actor group.
Malicious	An employee working for a foreign military contractor was bribed to pass confidential information to threat actors.
Malicious	A third-party contractor for a cryptocurrency firm sold customer data to threat actors and recruited colleagues into the scheme, leading to the termination of 300 employees and the compromise of 69,000 customers.
Malicious	Two contractors accessed and deleted sensitive documents and dozens of databases belonging to the Internal Revenue Service and US General Services Administration.

Catching the Warning Signs Early

Potential insiders often display technical and nontechnical behavior before initiating illicit activity. Although these actions may not directly implicate an employee, they can be monitored, which may lead to inquiries or additional investigations to better understand whether the employee poses an elevated risk to the organization.

Flashpoint has identified the following nontechnical warning signs associated with insiders:

• Behavioral indicators: Observable actions that deviate from a known baseline of behaviors. These can be observed by coworkers or management or through technical indicators. Behavioral indicators can include increasingly impulsive or erratic behavior, noncompliance with rules and policies, social withdrawal, and communications with competitors.
• Financial changes: Significant and overlapping changes in financial standing—such as significant debt, financial troubles, or sudden unexplained financial gain—could indicate a potential insider threat. In the case of financial distress, an employee can sell their services to other threat actors via forums or chat services, thus creating additional funding streams while seeming benign within their organization.
• Abnormal access behavior: Resistance to oversight, unjustified requests for sensitive information beyond the employee’s role, or the employee being overprotective of their access privileges might indicate malicious intent.
• Separation on bad terms: Employees who leave an organization under unfavorable circumstances pose an increased insider threat risk, as they might want to seek revenge by exploiting whatever access they had or might still possess after leaving.
• Odd working hours: Actors may leverage atypical after-hours work to pursue insider threat activity, as there is less monitoring. By sticking to an atypical schedule, threat actors maintain a cover of standard work activity while pursuing illicit activity simultaneously.
• Unusual overseas travel: Unusual and undocumented overseas travel may indicate an employee’s potential recruitment by a foreign state or state-sponsored actor. Travel might be initiated to establish contact and pass sensitive information while avoiding raising suspicions in the recruit’s home country.

The following are technical warning signs:

• Unauthorized devices: Employees using unauthorized devices for work pose an insider threat, whether they have malicious intent or are simply putting themselves at higher risk of human error. Devices that are not controlled and monitored by the organization fall outside of its scope of operational security, while still carrying all of the sensitive data and configuration of the organization.
• Abnormal network traffic: An unusual increase in network traffic or unexplained traffic patterns associated with the employee’s device that differ from their normal network activity could indicate malicious intent. This includes network traffic employing unusual protocols, using uncommon ports, or an overall increase in after-hours network activity.
• Irregular access pattern: Employees accessing data outside the scope of their job function may be testing and mapping the limits of their access privileges to restricted areas of information as they evaluate their exfiltration capabilities for their planned illicit actions.
• Irregular or mass data download: Unexpected changes in an employee’s data handling practices, such as irregular large-scale downloads, unusual data encryption, or uncharacteristic or unauthorized data destinations, are significant indicators of an insider threat.

Insider Threats: What to Expect in 2026

As 2026 unfolds, insider threat actors will continue to be a major threat to organizations. Ransomware groups and initial access threat actors will continue recruiting interested insiders and exploiting human vulnerabilities through social engineering tactics. Following Telegram’s recent bans on many illicit groups and channels, Flashpoint assesses that threat actors are likely to migrate to different platforms, such as Signal, where encrypted chats make their activity harder to monitor.

As AI technologies continue to advance, organizations will be better equipped to identify and mitigate insider risks. At the same time, threat actors will likely increasingly abuse AI and other tools to access sensitive information. 
Is your organization equipped to spot the warning signs? Request a demo to learn more and to mitigate potential risk from within your organization.

The post Insider Threats: Turning 2025 Intelligence into a 2026 Defense Strategy appeared first on Flashpoint.