The most common and most likely answer to this crossword clue is the 8 letter word FIREWALL
I've seen this crossword clue in The Daily Telegraph
F
I
R
E
W
A
L
L
More clues leading to the result FIREWALL
- Fear will collapse, getting security software
- Sink crossing turbulent weir that forms a barrier
- Let go of everything, including WPC’s protection
- Hacking, will fear this security measure?
- Dismiss idiot overlooking latest in computer protection
- Stimulate women with complete protection from infection
- Enthusiasm shown by everyone after the introduction of Webroot’s security system
- Sack everybody pinching women’s online protection
- Network protection has signal carrier go down when switching leads
Buddy explains!
The straight part
We know that "online protection" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case online protection = firewall.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does FIREWALL mean?
FIREWALL noun- A fireproof barrier used to prevent the spread of fire between or through buildings, structures, electrical substation transformers, or within an aircraft or vehicle.
- The software that monitors traffic in and out of a private network or a personal computer and allows or blocks such traffic depending on its perceived threat.
- A hypothetical phenomenon where an observer falling into a black hole encounters high-energy quanta at or near the event horizon.
- To protect with a firewall.
- To block with a firewall.
- (motor vehicles or aircraft) To use maximum acceleration.