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How To Become A White Hat Hacker

Ed Tittel and Earl Follis

Learn how to land a great job in technology.

6/17/2019 8:00 amA white hat hacker, or ethical hacker, uses penetration testing techniques to test an organization's IT security and identify vulnerabilities. IT security staff then uses the results of such penetration tests to remediate vulnerabilities, strengthen security and lower the organization's risk factors. 

Penetration testing is never a casual undertaking. It involves lots of planning, which includes getting explicit permission from management to perform tests, and then running tests as safely as possible. These tests often involve the very same techniques that attackers use to breach a network for real.

Background and education requirements

White hat hacking involves a great deal of problem-solving, as well as communication skills. A white hat hacker also requires a balance of intelligence and common sense, strong technical and organizational skills, impeccable judgment, and the ability to remain cool under pressure. 

At the same time, a white hat hacker needs to think like a black hat hacker, with all their nefarious goals and devious skills and behaviors. Some top-rate white hat hackers are former black hat hackers who got caught, and for various reasons, decided to leave a life of crime behind and put their skills to work in a positive (and legal) way. 

There are no standard education criteria for a white hat hacker – every organization can impose its own requirements on that position – but a bachelor's or master's degree in information security, computer science or even mathematics provides a strong foundation. 

For those who aren't college-bound, a military background, especially in intelligence, can help your resume get noticed by hiring managers. Military service is also a plus for employers who require or prefer to hire employees that already have a security clearance.

Pertinent certifications

Many white hat hacking and security-related IT certifications can help a candidate get a foot in the door, even without copious amounts of hands-on experience. 

Achieving the Certified Ethical Hacker (CEH) certification from the EC-Council is one recommended starting point. The CEH is a vendor-neutral credential, and CEH-certified professionals are in high demand. The median salary of an ethical hacker is almost $80,000, according to PayScale, and the top range can climb to well over $100,000. On the consulting side, the EC-Council states that CEH professionals can expect to be paid $15,000 to $45,000 per contract or short-term assignment. 

The intermediate-level CEH credential focuses on system hacking, enumeration, social engineering, SQL injection, Trojans, worms, viruses and other forms of attack, including denial of service (DoS). Candidates must also demonstrate thorough knowledge of cryptography, penetration testing, firewalls, honeypots and more. 

The EC-Council recommends a five-day CEH training class for candidates without prior work experience. To do well in the course, students should have Windows and Linux systems administration skills, familiarity with TCP/IP and working knowledge of virtualization platforms. However, self-study options are also available to help candidates pass the single required exam. Be aware that the EC-Council requires candidates to have at least two years of information security experience and to pay a $100 application fee. 

Becoming a certified white hat hacker also involves staying on the legal side of hacking, never engaging in illicit or unethical hacking activities and always protecting the intellectual property of others. As part of the certification process, candidates need to agree to uphold the EC-Council's code of ethics and never associate with unethical hackers or malicious activities. 

In addition to the CEH, the SANS GIAC curriculum is worth a look. The organization has granted more than 81,000 credentials to date. Candidates who start with GIAC's Cyber Defense certs, beginning with the GSEC, might find themselves better positioned to climb through an active, well-respected and deep security curriculum. The GIAC Penetration Tester (GPEN) and the GIAC Exploit Researcher and Advanced Penetration Tester (GXPN) are both noteworthy certs for aspiring white hat hackers. 

Another set of ethical hacking certifications comes from mile2. The organization's Cyber Security Certification Roadmap series includes the foundational Certified Vulnerability Assessor (CVA), followed by the Certified Professional Ethical Hacker (CPEH), the Certified Penetration Testing Engineer (CPTE) and, finally, the advanced-level Certified Penetration Testing Consultant (CPTC). Further, qualifying U.S. veterans can use their GI Bill benefits to earn cyber security certifications and training through mile2.

Some dabbling in computer forensics is always a good idea for somebody who works in information security. For those interested in the investigative side of security, continue with EC-Council's certification lineup and then tackle the Computer Hacking Forensic Investigator (CHFI) credential. 

The CHFI focuses on the forensics investigation process and utilizing the right tools and techniques to obtain computer forensic evidence and data. As part of the CHFI's certification training, candidates also learn how to recover deleted files, crack passwords, investigate network traffic and use a variety of forensic tools to gather information. 

A few other worthy forensics-related certs include the GIAC Certified Forensics Analyst (GCFA), the Certified Computer Forensic Technician and Certified Computer Crime Investigator certs from the High Tech Crime Network.

The physical side of penetration testing

One more thing: Not all aspects of penetration testing are digital, nor do they always rely on digital means or methods of pursuit. Security experts generally refer to the security features of a site or facility, and physical access controls involved in entering or using facilities or equipment in person, under the heading of "physical security." Full-fledged penetration testing thus also involves attempts to compromise or circumvent physical security as well.

Trained penetration testers may try to tailgate through an access gate, ask somebody to hold the door for them when seeking to bypass a badge reader or keypad entry control system, or use other forms of social engineering to get around physical security controls and barriers. Because getting up close and personal with equipment is a necessary first step in attacking its security, physical security and related security controls, policies and procedures are every bit as important as similar measures on the digital side of the security fence. 

Most information security certifications, including the CISSP, CISM, and Security+, provide some coverage of physical security in the common bodies of knowledge they ask candidates to learn and understand as they prepare for testing. 

For those specifically interested in physical security, the Physical Security Professional (PSP) credential from ASIS International is probably the creme de la creme of physical security certifications. It's worth checking out for those who want to understand the full range of penetration testing methods, approaches and techniques, especially in the realm of physical security.

Bottom line

Candidates who show interest in working in InfoSec, along with the appropriate background and a certification or two to start with, should have few problems finding ethical hacking work right away. Over time, you'll use continuing education and certification to steer your career exactly where you'd like it to go.

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