Allie Mellen,

Allie Mellen

Principal Analyst

Allie Mellen is a Forrester analyst covering security operations, nation-state threats, and the use of automation, machine learning, and AI in security tools. She is a computer engineer by trade and has held various engineering roles in her career, including doing research at MIT, running her own engineering consultancy, and being a hacker before finally becoming a security practitioner. She now advises Fortune 500 CISOs and security teams on their detection and response practice and frequently speaks at industry-leading events and with the press.

Allie is a featured speaker at many leading security conferences, including RSA Conference, Black Hat, HOPE, and many others. She is frequently quoted in top business press outlets including NPR, The Washington Post, The Wall Street Journal, CNN Money, CNBC, and Dark Reading.

Research Coverage

Planned Research

What research can you expect from Forrester in the next 12 months? Updated biweekly, our publishing plan will keep you current with market and technology trends. Use the link below to download a list of our upcoming research.

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May 21st, 2025 3:00 PM - 4:00 PM Webinar

The Top Cybersecurity Threats In 2025

The CISO is the arbiter of confidence and protection for the business in a world of geopolitical strife and shifting allegiances; regulatory hurdles and changes to AI and tech; quickly emerging and changing technologies in generative AI (genAI); and constantly evolving cybercriminal activity, including deepfakes. In 2025, five threats will affect security teams more than any other: global regulatory disruptions, high-quality deepfakes, tech exuberance over genAI, job loss radicalization, and genAI-driven extortion. Security pros need to prepare in advance.Key takeaways: Global regulatory disruptions: Data-related policies, regulations, and standards are becoming less aligned between domains and across countries.High-quality deepfakes: Attackers are increasingly using deepfakes because of their ability to cast doubt on security, trust in the media, and brand reputation. Deepfakes impact verification and authentication for almost every user group, including customers, business partners, and workforce members.Tech exuberance over genAI: Enterprise adoption of genAI continues to accelerate as models proliferate, training costs come down, and deployment options increase. But tech and security leaders are learning hard lessons about how different models behave — and the work required to make them secure — as new models emerge.Job loss radicalization: A new economic reality has emerged in 2025 with a flurry of activity that saw job cuts to 4% of the US federal government workforce, massive tech layoffs, and job cuts in Europe. Employees who remain after layoffs are not happy.GenAI-driven extortion: Between continued law enforcement disruption of ransomware gangs and enterprises’ greater focus on business resilience and data backups, ransomware became less lucrative for cybercriminals in 2024. Before genAI, stealing data was only so useful — reviewing millions of emails takes far too much time. Now, with genAI, attackers can perform a quick sentiment analysis on troves of stolen data for extortion schemes.Target audience level: intermediate
June 6th, 2025 3:00 PM - 4:00 PM Peer Discussions

Top Cybersecurity Threats In 2025: Insiders, Deepfakes, And Generative AI

2025 is already off with a bang! Security leaders face a constant battle of prioritization: what threats to focus on, what vulnerabilities to prioritize, what new processes to implement. In this session, we foster a group discussion to talk about the top five threats Forrester sees security leaders facing in 2025: High-quality, convincing deepfakesTech exuberance over generative AIJob loss radicalizationInfostealers driving extortion with generative AIDistractions from global eventsCome join us to brainstorm and network with other security leaders on how to protect against these threats and on what other threats your organization is facing. Peer discussions are available exclusively to Forrester Decisions VIP Leaders and Leader license holders for their own participation.