How cybercriminals are weaponizing AI

August 4, 2025

AI has made life easier for hackers, but cybersecurity pros can still fight back.
(Credits: Phonlamai Photo/Shutterstock)

The cybercriminal who just breached your network probably didn’t write a single line of code. Instead, they asked an AI tool to do it for them—and it worked perfectly.

While you’re still figuring out what to do about shadow AI, bad actors have already turned AI into their most effective weapon. According to Verizon’s latest Data Breach Investigations Report (DBIR)Opens a new window , AI-assisted malicious emails doubled over the past two years. AI-enabled cybercrime isn’t coming—it’s already here.

Your challenge is straightforward but daunting: how do you defend against attacks that can adapt, scale, and evolve faster than traditional security measures can detect them?

Why cybercriminals love AI

Cybercriminals have embraced AI for exactly the same reasons legitimate organizations have—it cuts costs while driving better outcomes. The difference is that their business model revolves around exploiting vulnerabilities and manipulating people. Unfortunately, AI has dramatically enhanced their ability to do just that.

Until recently, hackers needed quite a bit of time and effort to carry out extensive research and manually craft messages that would persuade people to click on harmful links or attachments. They can use AI to do all of that in hours instead of weeks. To cite just one example, GhostGPTOpens a new window , a tool that takes existing AI models and strips out their safety features, is already accelerating the production of phishing emails, creating realistic-looking fake login portals, and generating malicious code.

Worryingly, AI also makes it easier to launch effective cyber-attacks without specialized expertise. Sophisticated social engineering once required advanced language skills and deep cultural knowledge. Now, AI can generate convincing phishing emails in dozens of languages with perfect grammar and contextually appropriate references. Newbies and experienced attackers alike can easily sign up for AI-as-a-Service (AIaaS)Opens a new window subscriptions and launch their campaigns at scale.

New AI attack methods you need to know about

Better phishing and social engineering
Remember when you could instantly spot phishing emails by their terrible grammar? Those days are long gone. AI-generated phishing content now looks disturbingly like legitimate business communication. It sails into company inboxes with the right mix of industry jargon, company-specific references, and perfectly calibrated messaging. A harried office worker with an overflowing to-do list isn’t going to spot red flags nearly as easily as they once did.

Malicious actors are also tapping AI to personalize these messages at scale. It can scrape social media profiles, company websites, and professional networking data to craft targeted messages that reference specific projects, colleagues, or business relationships. These aren’t generic scams—they’re precision attacks designed to understand and exploit your specific organizational context. If your users don’t know to be on guard for this sort of thing, they could easily be duped without anyone being the wiser.

Deepfake social engineering
Voice and video impersonation attacks have moved from science fiction into corporate conference rooms. Cybercriminals can create convincing audio and video content that impersonates executives, vendors, or colleagues during real-time communications. These attacks often target financial transactions and sensitive data access, using authority and urgency to pressure employees to bypass standard verification procedures.

Automated vulnerability hunting
AI excels at pattern recognition, making it exceptionally good at identifying system weaknesses that human attackers might overlook. Machine learning algorithms can scan a company’s IT environment for vulnerable services, analyze patch management gaps, and predict likely security misconfigurations based on common implementation patterns.

IT teams that underestimate this speed advantage do so at their peril. Manual reconnaissance might take days or weeks, but AI-powered tools can map network topologies, identify potential entry points, and suggest exploitation strategies in hours.

Why current IT defenses struggle

AI-powered cyber-attack tools can now generate, deploy, and iterate on campaigns faster than human-managed security teams and cybersecurity platforms can analyze and respond to them. For example, traditional signature-based detection systems have a hard time flagging AI-generated content that automatically modifies itself to evade known patterns.

Consider email security systems that have been trained on historical attack patterns. They may completely miss AI-generated messages that deliberately avoid known indicators. When this happens, your IT team ends up playing catch-up against adversaries who can test and refine their approaches in real-time.

Defensive strategies that work

Fight AI with AI
The most effective defense against AI-powered attacks is AI-powered defense. According to the Spiceworks 2025 State of IT Report, “detecting and deterring security intrusions and fraud” ranks as the third most valuable AI use case for IT professionals.

Modern AI security tools can spot subtle changes in email writing patterns, unusual network access requests, or communications that deviate from established norms. These systems analyze massive datasets in real-time, flag potential threats, and automate initial responses.

Strengthen your authentication and access controls
Now that AI can generate convincing social engineering attacks or automate credential stuffing campaigns, password-based authentication has become even more vulnerable than it already was. With this in mind, the time has never been better to implement zero-trust architecture principles that verify every access request regardless of source. (34% percent of you are already doing this, per the State of IT report, and 28% plan to within two years.)

Update your security awareness training
Your security awareness training probably needs a refresh. Before, it might have focused on obvious red flags like spelling errors and suspicious links. Now, it should also prepare your users to spot more subtle indicators of AI-generated content, like emails that feel slightly off in tone despite perfect grammar, or messages that include details that sound right on the surface but don’t quite align with your colleagues’ actual communication patterns or knowledge.

Establish verification protocols for sensitive requests, especially those involving financial transactions and immediate changes to procedures. If someone emails asking for a wire transfer, call that person directly using a number from your company directory, not the phone number in the email. If someone calls requesting a password reset, hang up and call them back at their known office number. If a video call seems strange or someone’s making an unusual urgent request, verify it through a completely different channel before taking any action.

The key is using a separate communication method that a potential attacker likely couldn’t have compromised. Most importantly, encourage employees to question these demands instead of just acquiescing to them because they seem authentic and time-sensitive.

Use network segmentation and behavioral monitoring
If a human attacker can move laterally within your network once they’ve found a way in, they’re far more likely to succeed. This is true for AI-powered attacks, too. Network segmentation limits the potential damage by containing threats within specific zones. Combined with behavioral monitoring that detects unusual data access patterns, you can prevent successful AI-enabled intrusions from becoming catastrophic breaches.

Reality check on AI threats

The cybersecurity industry loves its doom and gloom, and AI-powered threats are no exception. While it’s concerning that enterprise users were three times more likelyOpens a new window to click on phishing links in 2024, we don’t need to run for the hills just yet.

AI-powered attacks are faster and more sophisticated, yes, but they exploit the same basic vulnerabilities that hackers once targeted by hand: unpatched systems, weak credentials, and human error. Accordingly, solid cybersecurity fundamentals still apply in the age of AI. Strong password practices, regular software updates, network segmentation, and user education will still go a long way toward protecting your business, its systems, and its data.

It’s also worth noting that in most cases, AI is amplifying existing threats rather than creating entirely new categories of risk. Organizations with a strong security culture are in a much better position to handle AI-enhanced attacks than those chasing shiny new tools while glossing over cybersecurity best practices.

So, instead of immediately calling for a red alert, focus on building and strengthening security programs that can nimbly adapt to emerging threats. You can and should use AI to beat AI, of course, but don’t forget that good cybersecurity still comes down to human intelligence: experienced IT pros making informed decisions.

Rose de Fremery
Rose de Fremery

Writer, lowercase d

Former IT Director turned tech writer, Rose de Fremery built an IT department from scratch; she led it through years of head-spinning digital transformation at an international human rights organization. Rose creates content for major tech brands and is delighted to return to the Spiceworks community that once supported her own IT career.
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