You will be likely doing many Google searches for this assignment.
If you Google "spear phising" you will get pages of results. Here are two that appear authoritative and are likely informative:
How do you know whether an article you found online is authoritative?
Check the following to get a sense of where the article comes from, and what may have been the authors' motivation:
Since you are writing this assignment as if you were a Security Officer (SO), using insustry-focused publications is a good idea.
A good way to get a cross-section of industry sources is by doing a Google search of this phrase: "Internet security threat report."
An awareness of the companies involved in security work is also a bonus. Try these links to get a sample of industry sources:
Always try to differentiate salesmanship from trustworthy information. Please see the box to the left of this one for what to look for when evaluating web sources.