As a rule, yes. When granting an interim injunction the court requires security to cover any loss the other side or third parties may suffer if the injunction turns out to have been unjustified. That follows from the injunction provisions of the Code of Civil Procedure (No. 6100).
The amount is set by the court according to the nature of the claim and the size of the possible loss. Security can be deposited in cash, but in most cases it can also be provided by a bank letter of guarantee, which lets you obtain the injunction without tying up working capital. The Law also gives the court a discretion not to require security at all in certain cases, where the claim rests on an official document or on conclusive evidence. The right approach to security both makes the order easier to obtain and keeps the cost manageable.
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