With Qureshey and E2-Labs partnering with third parties to offer training, it gives the impression that they do not have the in-house talent to develop courses. In addition to using material provided by Zone-H (and possibly others) through failed partnerships, E2-Labs plagiarizes content for their web site.
The 'Vulnerabilities' page is taken directly from the SANS Top 20 (2007) list, without providing a link or credit as to the source:
E2-Labs page on penetration testing and vulnerability assessment appears to be cobbled together from several sources:
Their Enterprise PKI offerings are lifted straight from Comodo Japan's "Managed Enterprise Security" page. E2-Labs copied the material but forgot to make necessary edits in a few places, betraying their plagiarism: