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Arun Kumar

Arun Kumar

Senior Security Researcher, Fastly

Arun Kumar is a Senior Security Researcher at Fastly, with a focus on bot management & anti-fraud products.
DDoS in FebruaryArun Kumar, David King, +1
Fastly's February 2025 DDoS report reveals a 285% month-over-month surge in DDoS attacks. Learn about key trends, targeted industries, and actionable security guidance.
SecurityIndustry insights
DDoS in JanuaryArun Kumar, David King, +1
Stay informed with Fastly's monthly DDoS report, highlighting a 14.5% rise in attacks. Utilize our data-driven insights to bolster your application's security.
SecurityIndustry insights
Back to Basics of Automated Attacks: Account TakeoverArun Kumar, Fastly Security Research Team
Explore account takeover attacks and mitigations including modern authentication with 2FA/passkeys, and anti-bot measures to enhance account security.
Security
How to Protect Against Credential Stuffing Arun Kumar, Fastly Security Research Team
In this post, we will discuss a low latency approach to detect these attacks by co-locating the password hashes in a KV Store, along with Compute on Fastly’s edge.
ComputeEdge network+2
Network Effect Threat Report: Uncovering the power of collective threat intelligenceFastly Security Research Team, Simran Khalsa, +3
Announcing the Network Effect Threat Report, Fastly’s threat intelligence report with insights based on unique data from April to June of 2023
SecurityIndustry insights+1
CVE-2023-34362: Progress MOVEit Transfer SQL Injection VulnerabilityFastly Security Research Team, Simran Khalsa, +3
What you need to know about CVE-2023-34362: Progress MOVEit Transfer SQL Injection Vulnerability
Security
Examining Chrome's TLS ClientHello Permutation | FastlyJonathan Foote, Arun Kumar, +2
On January 20th, Chrome shipped an update that changed the profile of one of the most popular TLS client fingerprinting algorithms, JA3. In this short blog post we’ll describe the change and our observations across Fastly's network.
Industry insightsSecurity