Security Researcher & Analyst - Email Threats

Available locations: Lisbon, Portugal

Overview

Our research an analyst team will be focused on email threats that are directed at customers protected by the Cloudflare Email Security products. New email threats are constantly emerging as phishing remains the number one source of breaches. Evaluating new threats and the efficacy of our email detections will be part of the day-to-day in this role. This will involve how to stop new and novel techniques by threat actors and ensuring our detections are targeted and highly effective.

As part of the larger Intel team the role will work to develop new AI and machine learning models to scale the system defenses as well as scale our ability to evaluate customer detection feedback.

Key Responsibilities

• Experience with email analysis
• Ability to understand the latest security trends as they relate to email-borne threats
• Submit IOCs to data pipeline based on external reports
• Define automations and software requirements for support tooling
• Define processes and procedures to create 24x7 coverage of miscategorizations
• Continually evaluate the quality of threat data feeds, work to maximize value from them, evaluate new potential sources of data
• Research observed IoCs and network behavior patterns and label data
• Work with data scientists to identify security threats and create machine learning models
• Be a team SME and resource for data scientists building security models and application developers building security products
• Become a subject matter expert for email threats and categorization data
• Define and implement metrics for product efficacy
  • Research and plan potential software, data science or machine learning projects to improve false positive and false negative rates
  • Continually monitor data quality and bring data quality issues and proposed solutions to team leadership
• Write blog posts and communicate both internally and externally about Intel Team's work
• Execute daily operational tasks and define automations to streamline operational tasks
• Work with team to define technical requirements for security products
  • Research threats, exploits, and TTPs being defended against in products and work with engineers to create products that defend against them

Required Skills & Abilities

• Experience analyzing, tracking and defending against phishing attacks
• Familiarity with regular expressions and their practical application in tracking malicious activity
• Working knowledge of SQL and devising SQL queries
• Experience with detection development using YARA
• Working knowledge of email authentication protocols (SPF, DMARC, DKIM), and experience in email header analysis
• Able to use git to create, edit, and review pull requests
• Basic front-end or full-stack development skills preferred but not required
• Knowledge of and passion for cybersecurity
• Knowledge of cyber security industry terms and concepts
  • e.g. MITRE ATT&CK Framework, Lockheed Killchain
  • Ability to learn about security threats and map them to the MITRE ATT&CK framework and Lockheed Killchain
• Strong knowledge of networking and "how the Internet works"
  • DNS, HTTP, TCP/IP, TLS, public key encryption
• Ability to communicate to stakeholders and management when priorities change

What Makes Cloudflare Special?

We’re not just a highly ambitious, large-scale technology company. We’re a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet.

Project Galileo: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by Cloudflare’s enterprise customers--at no cost.

Athenian Project: In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration. Since the project, we've provided services to more than 425 local government election websites in 33 states.

1.1.1.1: We released 1.1.1.1 to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver. This is available publicly for everyone to use - it is the first consumer-focused service Cloudflare has ever released. Here’s the deal - we don’t store client IP addresses never, ever. We will continue to abide by our privacy commitment and ensure that no user data is sold to advertisers or used to target consumers.

Sound like something you’d like to be a part of? We’d love to hear from you!

This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Please note that any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license.

Cloudflare is proud to be an equal opportunity employer.  We are committed to providing equal employment opportunity for all people and place great value in both diversity and inclusiveness.  All qualified applicants will be considered for employment without regard to their, or any other person's, perceived or actual race, color, religion, sex, gender, gender identity, gender expression, sexual orientation, national origin, ancestry, citizenship, age, physical or mental disability, medical condition, family care status, or any other basis protected by law. We are an AA/Veterans/Disabled Employer.

Cloudflare provides reasonable accommodations to qualified individuals with disabilities.  Please tell us if you require a reasonable accommodation to apply for a job. Examples of reasonable accommodations include, but are not limited to, changing the application process, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment.  If you require a reasonable accommodation to apply for a job, please contact us via e-mail at hr@cloudflare.com or via mail at 101 Townsend St. San Francisco, CA 94107.