Gaza has around 250 men who fish with spears and some 4,000 who use boats and nets, among a population of two million.
While finding a tope shark is amazing enough, as they are considered a critically endangered species, its made all the rarer for its lack of pigmentation, a rare sight on any animal.
The hackers were after specific employees who had access to account support tools used by Twitter's support teams.
Fishing zone was closed completely last week.
The fishing zone in Gaza was reduced to six nautical miles on Tuesday due to the fires.
Last week, in response to the balloons, Israel restricted the Gaza fishing zone to 10 nautical miles, one day after extending it to 15 nautical miles.