Is the U.K. at Risk of Paris-Style Attacks?

Andrew Parker of MI5 calls for enhanced powers due to rising terrorist threats and decreasing surveillance capabilities. The Paris attacks serve as a reminder of global threats, but no direct link to UK attacks is suggested. MI5 has increased security at Eurostar points and is lobbying for better data access. The UK's terror threat level remains high, with several attacks thwarted. Business impacts are uncertain, with a focus on cyber threats in the financial district.

What is the current level of the terror threat in the UK as mentioned in the text?

What impact did the recent events have on business confidence according to the discussion?