Crossword Genius

Up-and-coming tech company in southeast Australia hacked computers? (7)

Ross

I believe the answer is:

zombies

I'm a little stuck... Click here to teach me more about this clue!

'up-and-coming tech company in southeast australia hacked computers?' is the definition.
I can't judge whether this definition defines the answer.

'up-and-coming tech company in southeast australia' is the wordplay.
'up-and-coming' says the letters should be written in reverse.
'tech company' becomes 'ibm' (I am not sure about this - if you are sure you should believe this answer much more).
'in' is an insertion indicator.
'southeast' becomes 'SE' (synonyms).
'australia' becomes 'oz' (informal name for Australia).
'se'+'oz'='seoz'
'ibm' placed into 'seoz' is 'seibmoz'.
'seibmoz' in reverse letter order is 'ZOMBIES'.

Can you help me to learn more?

(Other definitions for zombies that I've seen before include "those who find it impossible to sleep" , "Voodoo undead" , "Lethargic people" , "Mob size (anag.)" , "Rum cocktails" .)

I've seen this clue in The Independent.
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