Identifying and Stopping Bot Attacks

Updated: June 12, 2026 by Laura Burrows 6 min read February 22, 2024

While bots have many helpful purposes, they have unfortunately become a tool for malicious actors to gain fraudulent access to financial accounts, personal information and even company-wide systems. Almost every business that has an online presence will have to face and counter bot attacks. In fact, a recent study found that across the internet on a global scale, malicious bots account for 30 percent of automated internet activity.1 And these bots are becoming more sophisticated and harder to detect.

What is a bot attack and bot fraud?

Bots are automated software applications that carry out repetitive instructions mimicking human behavior.2 They can be either malicious or helpful, depending on their code. For example, they might be used by companies to collect data analytics, scan websites to help you find the best discounts or chat with website visitors. These “good” bots help companies run more efficiently, freeing up employee resources.

But on the flip side, if used maliciously, bots can commit attacks and fraudulent acts on an automated basis. These might even go undetected until significant damage is done. Common types of bot attacks and frauds that you might encounter include:

  • Spam bots and malware bots: Spam bots come in all shapes and sizes. Some might scrape email addresses to entice recipients into clicking on a phishing email. Others operate on social media sites. They might create fake Facebook celebrity profiles to entice people to click on phishing links. Sometimes entire bot “farms” will even interact with each other to make a topic or page appear more legitimate. Often, these spam bots work in conjunction with malware bots that trick people into downloading malicious files so they can gain access to their systems. They may distribute viruses, ransomware, spyware or other malicious files.
  • Content scraping bots: These bots automatically scrape content from websites. They might do so to steal contact information or product details or scrape entire articles so they can post duplicate stories on spam websites.
  • DDoS bots and click fraud bots: Distributed denial of service (DDoS) bots interact with a target website or application in such large numbers that the target can’t handle all the traffic and is overwhelmed. A similar approach involves using bots to click on ads or sponsored links thousands of times, draining advertisers’ budgets. 
  • Credential stealing bots: These bots use stolen usernames and passwords to try to log into accounts and steal personal and financial information. Other bots may try brute force password cracking to find one combination that works so they can gain unauthorized access to the account. Once the bot learns consumer’s legitimate username and password combination on one website, they can oftentimes use it to perform account takeovers on other websites. In fact, 15 percent of all login attempts across industries in 2022 were account takeover attacks.1
  • AI-generated bots: While AI, like ChatGPT, is vastly improving the technological landscape, it’s also providing a new avenue for bots.3 AI can create audio and videos that appear so real that people might think they’re a celebrity seeking funds. 

What are the impacts of bot attacks?

Bot attacks and bot fraud can have a significant negative impact, both at an individual user level and a company level. Individuals might lose money if they’re tricked into sending money to a fake account, or they might click on a phishing link and unwittingly give a malicious actor access to their accounts.

On a company level, the impact of a bot attack can be even more widespread. Sensitive customer data might get exposed if the company falls victim to a malware attack. This can open the door for the creation of fake accounts that drain a company’s money. For example, a phishing email might lead to demand deposit account (DDA) fraud, where a scammer opens a fraudulent account in a customer’s name and then links it to new accounts, like new lines of credit. Malware attacks can also cause clients to lose trust in the company and take their business elsewhere.

A DDoS attack can take down an entire website or application, leading to a loss of clients and money. A bot that attacks APIs can exploit design flaws to steal sensitive data. In some cases, ransomware attacks can take over entire systems and render them unusable.

How can you stop bot attacks?

With so much at risk, stopping bot attacks is vital. But some of the most typical defenses have core flaws. Common methods for stopping bot attacks include:

  • CAPTCHAs: While CAPTCHAs can protect online systems from bot incursions, they can also create friction with the user process.
  • Firewalls: To stop DDoS attacks, companies might reduce attack points by utilizing firewalls or restricting direct traffic to sensitive infrastructures like databases.4
  • Blocklists: These can prevent IPs associated with attacks from accessing your system entirely.
  • Multifactor authentication (MFA): MFA requires two forms of identification or more before granting access to an account.
  • Password protection: Password managers can ensure employees use strong passwords that are different for each access point.

While the above methods can help, many simply aren’t enough, especially for larger companies with many points of potential attacks. A piecemeal approach can also lead to friction on the user’s side that may turn potential clients away. Our 2024 Identity and Fraud Report revealed that up to 38 percent of U.S. adults stopped creating a new account because of the friction they encountered during the onboarding process. And often, this friction is in place to try to stop fraudulent access.

Incorporating behavioral analytics to combat attacks

Another effective way to enhance bot detection is through the use of behavioral analytics. This technology helps track user activity and identify patterns that may suggest malicious bot behavior. By analyzing aspects such as typing speed, mouse movement and the way users interact with websites, businesses can gain real-time insights into whether a visitor is human or a bot.

Behavioral analytics in fraud uses machine learning and advanced algorithms to continuously monitor and refine user behavior patterns. This allows businesses to identify bot attacks more accurately and prevent them before they cause harm. By analyzing real-time behaviors, such as how fast someone enters information or their browsing habits, businesses can flag suspicious activity that traditional methods might miss.

Why partner with Experian?

What companies need is fraud and bot protection with a positive customer experience. We provide account takeover fraud prevention solutions that can help protect your company from bot attacks, fraudulent accounts and other malicious attempts to access your sensitive data. Experian’s approach embodies a paradigm shift where fraud detection increases efficiency and accuracy without sacrificing customer experience. We can help protect your company from bot attacks, fraudulent accounts and other malicious attempts to access your sensitive data. 

This article includes content created by an AI language model and is intended to provide general information.

1“Bad bot traffic accounts for nearly 30% of APAC internet traffic,”SMEhorizon, June 13, 2023.https://www.smehorizon.com/bad-bot-traffic-accounts-for-nearly-30-of-apac-internet-traffic/
2“What is a bot?”AWS.https://aws.amazon.com/what-is/bot/
3Nield, David. “How ChatGPT — and bots like it — can spread malware,”Wired, April 19, 2023.https://www.wired.com/story/chatgpt-ai-bots-spread-malware/
4“What is a DDoS attack?”AWS.https://aws.amazon.com/shield/ddos-attack-protection/

Related Posts

Invisible security is the new competitive advantage at checkout 

Every retailer invests heavily to drive shoppers to its website during the holidays. But after months of planning and thousands to millions of dollars spent on marketing, every customer journey comes down to one critical moment: Checkout.  Today, fraud prevention means protecting revenue by ensuring legitimate customers complete their purchase, not just stopping bad actors.  That's becoming increasingly important as holiday shopping evolves. In 2025, U.S. online holiday spending reached a record $257.8 billion,1 with shoppers spreading their purchases across months rather than just Black Friday and Cyber Monday. Every approval and every false decline has a bigger business impact than ever.  Trust is becoming a conversion strategy  Consumers expect retailers to protect them from fraud, but they don't want that protection to slow them down. That's where a significant opportunity exists.  Experian research found that 52% of consumers expect retailers to protect them online, yet only 19% trust them to do so.2 Meanwhile, payment providers enjoy a positive trust gap because security happens quietly in the background with minimal friction.   The takeaway? Customers don't equate more authentication with more trust. Instead, they equate less friction with better experiences.  Learn how retailers can improve approvals, reduce false declines and build customer trust through layered identity intelligence.  Download the white paper Invisible security is the future of checkout  Modern identity verification, behavioral analytics and account intelligence allow retailers to recognize trusted customers behind the scenes – reserving step-up authentication only for higher-risk transactions. Why does that matter? Because friction is measurable.  Research from Experian and cited in our white paper, shows that 16% of online transactions encounter suspected fraud friction, and 70% of that friction is unnecessary.3 Meanwhile, 25% of consumers abandon the purchase after experiencing onboarding friction, choosing a competitor instead.   Reducing unnecessary friction isn't just good customer experience; it's good business.  One retailer that used Experian's account ownership verification and identity intelligence captured more than $8 million in additional monthly revenue by improving auto-approval strategies and reducing customer friction.   Learn how to protect revenue, not just prevent fraud As holiday traffic ramps up, retailers have an opportunity to rethink checkout as more than a fraud control. It's a revenue engine. Our latest white paper explores how layered identity strategies can help retailers improve approvals, reduce false declines and deliver the frictionless experiences customers increasingly expect.  Download the full white paper to learn how invisible security can help strengthen customer trust while maximizing holiday conversion.  Download now

August 19, 2026 by Kim Le
Winning Top-of-Wallet Before the Holiday Season: What Lenders Should Know Now

Every year, consumers say they'll spend less during the holidays. Every year, many do the opposite. Ahead of the 2025 holiday shopping season, 57% of consumers told Deloitte they expected the economy to weaken, the most pessimistic outlook recorded in the survey's history. Planned holiday spending was down 10%. Yet by the end of the season, online holiday sales reached a record $257.8 billion, up 6.8% year over year. Credit card balances climbed to $1.28 trillion, and Buy Now, Pay Later (BNPL) financing surpassed $20 billion during the holiday period. For lenders, the takeaway is to identify and engage the right consumers before the holidays were best equipped to capture that spending while effectively managing risk. As the 2026 holiday season approaches, Experian's latest market insights suggest that while credit performance appears relatively stable at the portfolio level, important shifts beneath the surface are changing how lenders should evaluate both opportunity and risk. Holiday shopping season 2026 Winning top of wallet before the holiday swipe Download the white paper now Holiday lending decisions happen long before the holidays It’s been observed that the holiday shopping season has expanded – beginning before Black Friday – over recent years. While Cyber Week continues to generate headlines, holiday spending is becoming more distributed throughout the quarter. For lenders, that means strategies must be in place before peak shopping begins. Credit line increases, portfolio reviews, acquisition strategies and risk segmentation completed in late summer often determine how much holiday spending an institution can safely capture. At the same time, early signs of credit deterioration are emerging faster than traditional portfolio metrics suggest reinforcing the importance of identifying emerging portfolio risk early rather than relying solely on broad portfolio performance indicators. Income is becoming a stronger predictor of credit performance One of the most notable shifts in today's lending environment is the growing relationship between income and future credit performance. Experian's data suggests the market is becoming increasingly polarized. The population earning more than $250,000 annually has more than doubled since 2023, but more than one-quarter of those consumers have since moved into lower income brackets, often following retirement or job loss. Meanwhile, consumers earning less than $50,000 annually show relatively little income mobility, with approximately 85% remaining in the same income band year-over-year. These trends highlight an important reality: a credit score alone may no longer provide a complete picture of borrower risk. Four priorities before peak holiday spending With only a short window before holiday borrowing accelerates, lenders have an opportunity to strengthen both growth and risk strategies. Key areas of focus include: Refine acquisition strategies Move beyond score-only targeting by incorporating verified income, cash flow and existing credit relationships to identify qualified borrowers. Optimize existing portfolios Identify customers demonstrating positive credit migration and proactively evaluate opportunities to increase credit lines before peak spending begins. Monitor emerging credit risks Use early-stage delinquency indicators and behavioral signals to identify potential performance issues before losses accelerate. Strengthen fraud management and prevention Seasonal account openings and increased transaction volumes create greater fraud exposure. Identity verification, synthetic identity detection and dormant account monitoring remain critical during high-volume acquisition periods. Preparing for the holiday shopping season ahead The 2025 holiday season demonstrated that consumer spending decisions don't always align with consumer sentiment. How does that translate for the 2026 shopping season? For lenders, success will depend less on reacting to spending trends in November and more on making informed credit decisions months earlier. As consumer financial behavior continues to evolve, combining traditional credit data with income, cash flow and alternative data can provide a more complete understanding of both opportunity and risk. Institutions that incorporate these broader insights into acquisition, portfolio management and fraud strategies will be better positioned to grow responsibly during one of the year's most active lending periods. Ready to learn more? Access the full white paper

August 19, 2026 by Stefani Wendel
Why Distribution Matters in Income and Employment Verification 

Verification has become an increasingly important area of focus in mortgage lending, but success is about more than just coverage. In the latest episode of the Chrisman Commentary Podcast, Experian's Jamie Norris, Senior Manager of Strategic Alliances, shares why distribution and integration are increasingly the keys to driving adoption, automation, and better borrower experiences.  Why Distribution Matters in Verification  As lenders continue to pursue faster, more efficient mortgage processes, verification solutions must fit seamlessly into the systems they already use. Norris explains how Experian's strategy is focused on helping lenders access trusted income and employment data while minimizing workflow disruption by making Experian Verify accessible across loan origination systems (LOS), point-of-sale platforms, underwriting technologies, and reseller networks.  Building a Smarter Verification Strategy  The conversation explores why lenders benefit from having access to multiple verification providers, how they can optimize verification strategies to maximize automation while minimizing costs and borrower friction, and why an "instant-first" approach is gaining momentum across the industry.  Looking Ahead: AI, Automation, and the Future of Mortgage Lending  Norris also discusses how AI-driven underwriting and decisioning are reshaping mortgage technology. As lending platforms become increasingly automated, real-time verification data is expected to support faster decisioning and more streamlined borrower experiences.  She shares Experian's vision for expanding its verification ecosystem and delivering a broader suite of solutions that meet lenders wherever they work.  Listen to the full episode above to hear Jamie's insights on verification strategy, partner integrations, AI-enabled lending, and what's next for mortgage automation. 

August 18, 2026 by Ted Wentzel

Subscribe to our Newsletter

Enter your name and email for the latest updates.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Subscribe to our Newsletter

Don't miss out on the latest industry trends and insights!
Subscribe