There is an underlying threat from terrorism. See Terrorism
Around 120,000 British nationals visit Luxembourg every year (Source: STATEC (Statistics Office in Luxembourg). Most visits are trouble-free.
Take out comprehensive travel and medical insurance before travelling.
All vehicles must have winter tyres when temperatures are zero or below. See Road travel
The Overseas Business Risk service offers information and advice for British companies operating overseas on how to manage political, economic, and business security-related risks.