Staying informed about the latest trends in cybersecurity threats is crucial for both professionals and enthusiasts. Here are some of the most discussed and concerning trends as of 2025, based on insights from Redditors:

Phishing and Social Engineering

Phishing remains a pervasive and evolving threat. Attackers are becoming more sophisticated, often impersonating trusted entities to steal credentials.

• "Phishing is annoying to me purely because i have to MFA into so many fucking tools daily as a result."

• "Users are the weakest link. You can raise awareness all you want, but the second someone in HR receives an email from the CEO to buy iTunes gift cards, all critical thinking goes out of the fucking window."

Ransomware

Ransomware attacks have evolved to not only encrypt data but also to threaten public exposure of sensitive information, making backups and multi-layered defenses more critical than ever.

• "Recent cases show that ransomware has evolved not only to encrypt data but also to threaten public exposure of sensitive information."

• "Ransomware as a Service models are really showing the strength of criminal enterprise."

AI-Enabled Threats

The integration of AI into cyberattacks is a growing concern, with AI being used to create more convincing phishing campaigns and to bypass security measures.

• "Everyone’s rushing to implement AI into their workflows without thinking from a security standpoint."

• "AI will make phishing so much worse. Now instead of getting a classic phishing mail, you could send an entire company personalized phishing mails based on social media profiles etc."

Third-Party and Supply Chain Attacks

Compromises through third-party vendors and supply chain attacks are increasingly common, highlighting the need for thorough vendor risk management.

• "The biggest pain though has been 3rd party compromises. Salesforce, RedHat, and npm were particularly annoying."

• "Not sure if it qualifies as recent, but the SolarWinds incident where they got hacked and had malicious code injected into their source, which got compiled and deployed to customers."

Insider Threats

Data breaches caused by internal actors, whether deliberate or due to negligence, remain a significant concern.

• "Insider threats: Data breaches caused by internal actors remain a concern."

• "~80% of our issues are inside jobs. Chain of custody is a must."

Cloud Misconfigurations

Many organizations are moving to the cloud, but misconfigurations in platforms like AWS or Google Workspace can leave them vulnerable.

• "Cloud Misconfigurations — Platforms like AWS or Google Workspace are often left wide open due to default or misunderstood settings."

SIM Swapping

SIM swapping is an underrated but dangerous threat where attackers take control of a victim's phone number to access their accounts.

• "For me → it’s SIM swapping. One phone call and suddenly your bank + email are gone. Scary."

Weak and Reused Passwords

Simple security lapses like weak or reused passwords continue to be a major entry point for attackers.

• "Weak/Reused Passwords — One breach, and attackers recycle that same login across every system you use."

Recommendations for Staying Updated

To stay informed about these trends and more, consider following these resources and subreddits:

• DFIR Report

• Team Cymru’s Dragon News Bytes

• Feedly (for aggregating cybersecurity news)

• Google Threat Intel / Mandiant

• Security Boulevard

• The Hacker News

• BleepingComputer

• KrebsOnSecurity

• Cyber Security Insider

• Security Week

• CISA Cybersecurity Advisories

Subreddits to Explore

• r/AskNetsec

• r/cybersecurity

• r/Cybersecurity101

• r/netsec

By keeping up with these trends and utilizing these resources, you can better protect yourself and your organization from the ever-evolving landscape of cyber threats.