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Global Data RulesData governance rules, country by country

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LuxembourgChecked 18 August 2026
Depends on your industryWork: HighEnforcement: Active
In one paragraph
For most businesses, data can leave Luxembourg on the same terms as anywhere else in the European Union: you need the right paperwork, not a local data centre. Finance is the exception, and finance is most of the economy here. Banks and insurers are bound by a secrecy duty that is a crime to break, and a bank that runs its accounts abroad must still keep a daily backup inside Europe.
The catch
The relaxed general answer stops the moment you touch banking, insurance or investment funds. There, three things bite: breaking client secrecy is a criminal offence, not a fine; you may only send client information to a supplier abroad if the client has accepted the outsourcing, the type of information and the country the supplier sits in; and if a bank's accounting system is hosted outside Luxembourg it must still hold a full end-of-day backup on premises inside the European Economic Area. Telecoms firms face a separate 6-month duty to keep call and location records.
Does this apply to me?
Yes. If you sell to people in Luxembourg or watch what they do online, the European privacy rules reach you even with no office here. There is no revenue or headcount threshold to hide under. A company with no base anywhere in Europe must appoint a representative in Europe, though it does not have to be in Luxembourg. The extra Luxembourg-only duties in the national law mostly apply to organisations that are actually set up here.High confidence
Can the data leave the country?
In general, yes, with paperwork. Luxembourg has no national law telling ordinary companies to keep data in the country, and European law actually forbids member states from forcing non-personal data to stay put except on public-security grounds. But this is a banking and fund centre, and the finance rules change the answer. A bank or insurer may only hand client information to a supplier abroad if the client has been told and has accepted which country that supplier is in. And a bank whose accounting system sits outside Luxembourg must still keep a full daily backup somewhere inside the European Economic Area.High confidence
What do I have to do to send it abroad?
The model is a European approved-list. Sending personal data outside Europe is barred unless the destination is on the European Commission's approved list, or you put an approved safeguard in place first. The list is real and populated. Luxembourg adds no national permit and the regulator does not pre-approve ordinary transfers. In finance, though, you also need the client's acceptance of the destination country before their information moves.High confidence
Who enforces this — and are they actually working?
Yes, the regulators here really work. The privacy regulator is the National Commission for Data Protection, known as the CNPD. It is staffed, it publishes decisions, and in 2025 it handled 846 complaints, 425 breach reports and 59 investigations. It issued the largest privacy fine ever recorded in Europe, against Amazon in 2021. The financial regulator and the insurance regulator are heavyweight supervisors in their own right, and since May 2026 the telecoms regulator also runs the national cybersecurity regime.High confidence
How long must I keep it, and when must I delete it?
There is a floor and a ceiling, and they collide often. You must keep anti-money-laundering records for 5 years after the relationship ends, patient files for at least 10 years after care ends, and telephone and internet connection records for 6 months. In the other direction, European privacy law says delete personal data once you no longer need it, and the anti-money-laundering law says delete it when the 5 years are up unless another law makes you keep it longer. That last sentence is how Luxembourg resolves the clash: the longest specific legal duty wins, and after that you must actually erase.High confidence
What happens when something goes wrong?
Count four clocks, because they overlap and they start at different moments. Privacy breach: 72 hours to tell the privacy regulator. Telephone and internet providers: 24 hours to report a personal data breach. Cybersecurity incidents at important companies: an early warning in 24 hours, a fuller report in 72 hours, and a final report a month later. Banks and insurers have their own European reporting on top. The trap is that one incident can start all of them at once, on different teams, with different forms.High confidence
What's the trap?
Five things that are not in any summary. (1) Breaking bank or insurance client secrecy is a crime, not a fine, and it survives the end of the job. (2) Your works council can freeze an employee-monitoring project: staff have 15 days to ask the privacy regulator for an opinion, and that request suspends the project for a month. (3) Research projects carry a fixed list of 12 extra safeguards you must apply or justify skipping. (4) Using genetic data for employment or insurance purposes is banned outright. (5) The privacy regulator cannot fine the State or a commune, so a public body has far less to lose than you do.High confidence
What's about to change?
Two dated changes and several switches already in someone's hand. The dated ones: from 12 January 2027 cloud providers must let customers move away with no exit or transfer fees at all, and Luxembourg's new cybersecurity law, in force since 10 May 2026, is still being filled in with guidance and templates. The switches to watch: the European approval of United States transfers is under formal challenge, and the 6-month duty on telecoms firms to keep call records sits uneasily with European court rulings and could be struck at any time.Medium confidence
Hardest industry wall
  • Finance Circulaire CSSF 22/806 relative aux arrangements d'externalisation, telle que modifiee par la circulaire CSSF 25/883
LithuaniaChecked 18 August 2026
Depends on your industryWork: HighEnforcement: Active
In one paragraph
Lithuania has no general rule that data must stay in the country. Private companies follow the European rulebook: data can go abroad once the right paperwork is in place. The wall is in government. The data behind the state's most important computer systems must sit in Lithuanian state data centres — and a copy of the most critical state data must be kept abroad on purpose.
The catch
The easy answer stops being true the moment you sell computing to the Lithuanian state. State information resources are graded into four importance levels. The top two must be held in state data centres inside Lithuania. The bottom two may sit in a foreign or private data centre, but a copy must still be kept in a Lithuanian state data centre — and the government has only approved data centres in European Union, European Economic Area and NATO countries. Lithuania also runs a 'digital embassy': copies of the most critical state data are deliberately stored outside Lithuania so the state survives an invasion. Banking, payments, insurance, securities, telecoms and online gambling have no storage-location rule that we could find. Health records are not walled off by a location rule, but almost all of them flow into a state health system that lives inside that government wall.
Does this apply to me?
Yes. A company with no office in Lithuania is still caught if it offers goods or services to people in Lithuania, or watches what they do online. There is no size or revenue threshold to hide under — a two-person company is covered exactly like a bank. If you have no office anywhere in the European Union, you must appoint a representative inside the Union who can be contacted by regulators and by the public.High confidence
Can the data leave the country?
For an ordinary business, yes. Lithuania has not added a national storage-location rule on top of the European rules, so data can leave once you have the standard European paperwork. The exception is government. If a computer system counts as a state information resource, Lithuania grades it by importance, and the two top grades must be held in state data centres inside Lithuania. The two lower grades can sit abroad, but a copy must still be kept in a Lithuanian state data centre. Lithuania also forces the opposite move for its most critical state data: a copy must be kept outside the country, in what it calls a digital embassy.Medium confidence
What do I have to do to send it abroad?
Lithuania uses the European model: a destination is off-limits unless you have an approved route out. The easiest route is an approved-country list, which is populated and currently includes the United Kingdom, Switzerland, Japan, South Korea, Canada, Brazil and others, plus United States companies signed up to the European Union–United States Data Privacy Framework. If your destination is not on the list, the normal answer is a set of standard contract clauses published by the European Commission. Lithuania adds one local step: if you want to use your own custom contract wording instead of the standard clauses, you need written permission from the Lithuanian regulator first.High confidence
Who enforces this — and are they actually working?
The main regulator is the State Data Protection Inspectorate, and it is genuinely working. In 2025 it received 2,081 complaints, up 48 percent on the year before, ran 26 inspections and had 54 staff. By 31 July 2026 it had already published 122 decisions for the year. But the fines are small: it issued only five fines in the whole of 2025, the largest being 9,000 euros (about 9,800 US dollars). Lithuania also has a second, less well known data regulator for journalism, and a separate cyber regulator inside the defence ministry.High confidence
How long must I keep it, and when must I delete it?
Both directions apply and they pull against each other. The ceiling comes from Europe: you must delete personal data once you no longer need it for the purpose you collected it for. The floors come from Lithuanian sector rules and from retention tables issued by the Chief Archivist. Some floors are very long. Health records in the state e-health system are kept for the patient's whole life plus three years, then archived for 75 years. Online gambling systems must keep their logs for at least 90 days. When a floor and the ceiling clash, the floor wins for as long as it lasts, because keeping the data is then a legal duty.Medium confidence
What happens when something goes wrong?
Count at least two clocks, and they do not agree. If personal data is exposed, you have 72 hours to tell the State Data Protection Inspectorate. If you are covered by the Cybersecurity Law, a serious cyber incident must be reported to the National Cyber Security Centre within 24 hours — a full day earlier — with a fuller assessment at 72 hours and a final report within one month. Other incidents get 72 hours. Financial firms have a third clock under European digital resilience rules. Lithuanian organisations are visibly bad at the first clock: only 63 percent of breach reports in 2025 arrived on time.High confidence
What's the trap?
Five things that are not in the summary. Children can consent for themselves at 14 in Lithuania, not 16, so an age gate built for the European default is wrong here. You may never publish a Lithuanian personal identification number, and you may never use one for marketing. Complaining about a government body is worth less than you think, because fines on public institutions are capped at 30,000 or 60,000 euros. There are two data regulators, and journalism goes to the other one. And if you sell cloud services to the Lithuanian state, your data centre may simply be ineligible.High confidence
What's about to change?
Two dated changes matter in the next twelve months, and both are European. From 12 January 2027 every cloud provider must let customers move their data out for free — no exit fees at all. Around the same period, the technical security requirements of Lithuania's cyber law start biting for organisations registered in April 2025, roughly two years after registration. The bigger Lithuanian risk is not a new law at all: the government can change where state data must live by resolution, without going to parliament and without consulting anyone.Medium confidence
Hardest industry wall
  • Government Lietuvos Respublikos valstybes informaciniu istekliu valdymo istatymas, 45 straipsnis
  • Government Lietuvos Respublikos valstybes informaciniu istekliu valdymo istatymas — vidutines ir mazos svarbos istekliai
  • Government Skaitmenine ambasada — Vyriausybes nutarimas ir Valstybes informaciniu istekliu valdymo istatymo pakeitimai