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- Smarter Malware, Weaker Defenses: Why Legacy Tactics Fail in 2025
Smarter Malware, Weaker Defenses: Why Legacy Tactics Fail in 2025
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Is Shadow IT already in your organization?
You wouldn’t allow unmanaged devices on your network, so why allow unmanaged AI into your meetings?
Shadow IT is becoming one of the biggest blind spots in cybersecurity.
Employees are adopting AI notetakers without oversight, creating ungoverned data trails that can include confidential conversations and sensitive IP.
Don't wait until it's too late.
This Shadow IT prevention guide from Fellow.ai gives Security and IT leaders a playbook to prevent shadow AI, reduce data exposure, and enforce safe AI adoption, without slowing down innovation.
It includes a checklist, policy templates, and internal comms examples you can use today.
MFA Bombing Evolves into “Adaptive Pressure Attacks”
Attackers no longer rely solely on spam-style MFA bombing. Now, they use social cues (like calling the victim and posing as IT) right before triggering a prompt—turning pressure into a click.
Prevent this by enabling number matching, adaptive risk-based authentication, and training employees to deny any MFA they didn’t initiate.
AI Malware Is Learning from Failed Attacks
New malware strains use embedded AI logic to adjust behavior based on failed infection attempts. If blocked, they reroute, change file names, or pause activity until sandboxing ends.
Contain this with behavior-based EDR, deception systems, and memory-level analysis—signature scans alone won’t help anymore.
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BYOD Gaps Are Widening Again
Employees are increasingly using personal devices to access internal files, email, and apps—often without MDM or containerization in place. These unmanaged endpoints are now targeted with mobile-specific phishing and sideloaded malware.
Use strong device trust enforcement, deploy conditional access policies, and create mobile-specific phishing simulations in your awareness training.
Auto-Generated Access Policies Are Breaking Zero Trust
Some IAM systems and API gateways now offer auto-generated policies based on “observed behavior.” Unfortunately, this often leads to over-permissioned roles that violate Zero Trust principles.
Always review machine-suggested policies. Build approval workflows, and test in shadow mode before deployment.
Executive Email Accounts Targeted with Deep Context Phishing
Phishing campaigns aimed at the C-suite are now fueled by scraped media interviews, investor calls, and social posts. These lures are hyper-relevant and difficult to detect.
Use inbox isolation, executive impersonation alerts, and brief execs on current attacker tactics—especially when financial or legal topics are involved.
Teams and Slack Plugins Are Quietly Exfiltrating Data
Third-party productivity plugins for chat platforms often bypass traditional DLP. Some extract messages, files, or even sentiment data to external servers.
Restrict plugin installation rights, audit current integrations, and use webhook monitoring to catch unauthorized data outflows.
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