janfry

If you want to learn a little more about Greenland Sharks, I recommend the book "Shark Drunk": https://www.goodreads.com/cs/book/show/31348250-shark-drunk

Really enjoyable easy read.

For some security specific checks, take a look at:

1. Mozilla Observatory https://observatory.mozilla.org

2. SSLLabs https://www.ssllabs.com/ssltest/

3. Security Headers https://securityheaders.io/

For a comprehensive appsec checklist see OWASP ASVS https://www.owasp.org/index.php/Category:OWASP_Application_S...

Regarding onsite/remote, I think it depends on what you choose to specialise in. Most of the web application assessments I conduct are remote but there is still demand for onsite work.

Daniel Miessler has a good general guide: https://danielmiessler.com/blog/build-successful-infosec-car... tptacek, who posts often on HN, also has some wise words: https://krebsonsecurity.com/2012/06/how-to-break-into-securi...

There are so many sources of information and learning grounds available now - bug bounties, certifications, war games, online tutorials, blogs, conferences etc.

I would suggest choosing a particular area of interest to begin with and deep-diving on that subject. Look for mentors or perhaps someone to knowledge share / skill exchange with.

You could do pretty well with a base in C#. Through pentest engagements, I've come across quite a few C# apps in my time and even with my limited knowledge of the language, found some interesting vulnerabilities ;)

Edit: Added tptacek link

If you introduce a bug bounty too early, you will be paying out for vulnerabilities that could be caught or prevented in a much more cost effective manner (vulnerability assessments, penetration tests, developer training, appropriate monitoring).

Daniel Miessler has a good breakdown of when to consider various types of security testing: https://danielmiessler.com/blog/when-vulnerability-assessmen...

Sqreen also have a handy basic security checklist: http://cto-security-checklist.sqreen.io Specific to bug bounties they say "You need security aware people inside your development teams to evaluate any reports you receive."

Another good list that incorporates FuzzDB: https://github.com/danielmiessler/SecLists

As other commenters noted, strings like DROP TABLES should be used with caution!