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Alonso Sala
CRIMINAL LAWYERS
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Criminal Lawyers in Business Secrets Defense

Strategic legal defense for corporations and individuals facing industrial espionage or data breach accusations

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What Are Trade Secrets: Concept, Penalties and Defense (Arts. 278-280 CP)

The crimes relating to discovery and disclosure of trade secrets, regulated in Arts. 278 to 280 of the Spanish Criminal Code, punish the unlawful appropriation, espionage, dissemination or exploitation of reserved business information with competitive value. The protected legal interest is twofold: on one hand, the trade secret as intangible patrimonial asset covered by Law 1/2019, of 20 February, on Trade Secrets, which transposed Directive 2016/943/EU; on the other, the rules of fair competition and trust in professional legal relationships. Supreme Court case-law has consolidated that trade secrets cover any reserved information with economic value whose disclosure can generate competitive advantage to the recipient or harm to the holder, provided the company has adopted reasonable measures to preserve confidentiality.

The Spanish Criminal Code typifies three differentiated modalities within this crime family. Art. 278 CP punishes industrial espionage, that is, the conduct of whoever, without authorisation, discovers a trade secret by seizing by any means data, electronic documents, computer media or other objects referring to it, or employing any of the means or instruments of Art. 197.1 CP (interception, eavesdropping, hidden cameras). Art. 279 CP regulates the disclosure of the secret by whoever had a legal or contractual obligation to keep reserve: typically managers, executives, technicians or employees with lawful access to strategic information who disseminate or use it for their own benefit or that of a third party after the employment relationship's termination. Art. 280 CP punishes the third-party recipient who, knowing the unlawful origin, uses the secret discovered or revealed by another, extending criminal liability to competitors who hire the "leaver" or exploit the stolen information.

The penalties are severe and reflect the strategic importance the legislator attributes to immaterial property. Espionage under Art. 278.1 CP is punished with two to four years' prison and fine of twelve to twenty-four months; if discovered secrets are disseminated, revealed or transferred, the penalty rises to three to five years' prison and fine of twelve to twenty-four months (Art. 278.2 CP). When means of Art. 197.1 CP are used, the penalty is imposed in its upper half. Disclosure under Art. 279 CP carries two to four years' prison and fine of twelve to twenty-four months; when the secret is used without disseminating it, the penalty is one to three years' prison and fine of six to twelve months. The third-party recipient under Art. 280 CP is sanctioned with one to three years' prison and fine of twelve to twenty-four months. To this are added ex delicto civil liabilities, which can reach millionaire figures for lost profits and emerging damage, and criminal liability of legal entities under Art. 288 CP, with fines, activity suspension, judicial intervention or, in extreme cases, dissolution.

Technical defence in these proceedings requires combining economic criminal law, industrial property, labour law and forensic computer expertise. The first axis is the denial of "secret" character per requirements of Art. 1 of Law 1/2019: information that is not generally known or easily accessible, that has commercial value due to its secret character and has been the object of reasonable measures to maintain confidentiality; the absence of any of these elements excludes typicality and displaces litigation to the civil sphere. The second axis is the distinction between legitimate know-how and reserved data: the Supreme Court has reiterated that the professional experience accumulated by a worker is not a trade secret, opening solid defences against accusations against former employees using their technical capacity in their new destination. The third axis is the forensic computer audit: review of access logs, USB devices, massive downloads and exit communications respecting digital chain of custody and case-law on electronic evidence. The fourth axis is the whistleblower protection: Law 2/2023 on informant protection shields the informant revealing secrets to report serious infractions, which can operate as a liability exclusion cause.

In current forensic practice we observe exponential growth in trade secret proceedings, particularly in the technology, pharmaceutical, strategic consulting and financial services sectors. Disloyal employee cases who copy the client portfolio before leaving for the competition constitute the most frequent modality, followed by leaks to investment funds and litigation derived from mergers and acquisitions. The Trade Secrets Law 1/2019 and Directive 2016/943/EU have raised protection standards and require companies to implement reasonable measures (NDAs, access controls, document marking, employee training) without which criminal protection may lapse. At Alonso Sala we combine 15+ years of experience in criminal defence with deep knowledge of corporate compliance, articulating strategies covering both the defence of the accused employee or executive and the representation of the victim company pursuing the theft of strategic information. Each trade secret case requires immediate intervention to preserve digital evidence, secure the chain of custody and articulate coordinated civil and criminal claims that protect the client's interests.

Protection and Criminal Compliance

The best defense is prevention. We implement secret protection protocols, robust NDAs, and legal device monitoring systems so that, in case of theft, the evidence is strong and irrefutable at trial.

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Business Protection

We defend your company's most valuable assets with technical rigor and discretion

  • checkDigital forensic expertise of logs and USB devices.
  • checkTechnical defense against disloyal employee accusations.
  • checkImplementation of Compliance protocols and NDAs.
  • checkExit audits and information leak tracking.

Economic Criminal Law in Spain: Tax Fraud, Money Laundering and Corporate Crimes

Economic criminal law encompasses the most severe financial penalties in the Spanish Criminal Code. Tax fraud over €120,000 (Art. 305 CP), money laundering (Art. 301 CP), and corporate crimes (Art. 290-297 CP) are complex offenses where defense requires a combination of criminal law expertise and deep accounting/financial knowledge.

Penalty Comparison: Economic Offenses

OffenseThresholdPenalty
Tax Fraud (Art. 305)>€120,0001 – 5 years + fine x6
Aggravated Tax Fraud>€600,0002 – 6 years
Money Laundering (Art. 301)Any amount6 months – 6 years
Aggravated LaunderingOrganized/financial systemUp to 9 years
Corporate Crime (Art. 290)Balance sheet falsification1 – 3 years
Punishable Insolvency (Art. 259)Fraudulent bankruptcy1 – 4 years

Key Defense Strategies

Tax Regularization Defense (Art. 305.4 CP)

Pay the full tax debt before charges are formally filed and the crime is extinguished. This is the most powerful complete defense in tax fraud cases.

Challenge the €120K Threshold

The tax authority's calculation method is often contestable. Independent forensic accounting can challenge the assessed figure below the criminal threshold.

Money Laundering 'Self-laundering' Issues

Spanish courts have debated whether the primary offender can also be convicted of laundering their own proceeds. Challenge the double jeopardy implications.

Corporate Crime: Harm to Company vs. Shareholders

Art. 295 corporate crimes require actual financial harm to the company or its members. Demonstrate that any loss was speculative or absent.

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Business Secrets

Is it a crime to take the client list if I change companies?expand_more
Yes, it is the most common case (Art. 278 or 279 CP). The client list is not 'worker's memory', it is an intangible asset of the company. If you copy it, send it to your personal email, or use it to contact them from the new company, you commit a crime punishable by 2 to 4 years in prison.
What is considered a 'trade secret'?expand_more
Not just the Coca-Cola formula. It includes client lists, cost structures, commercial margins, strategic plans, or non-patented algorithms. Requirements: being secret, having business value, and the company having taken measures to protect it.
Does signing an NDA help?expand_more
It is vital. The NDA proves the company took measures to protect the information (requirement of the Trade Secrets Act). Violating the NDA is not just a civil breach, it is proof of intent in the crime of disclosure of secrets.
Can I hire a competitor's employee to bring me information?expand_more
Be careful. If you incite the employee to steal data, you are an inductor or necessary cooperator of the crime. Furthermore, your company can be criminally liable (legal entity) and face millionaire fines or closure.
Difference between industrial espionage and disclosure of secrets?expand_more
Espionage (Art. 278) is committed by someone who 'discovers' the secret (e.g., plants bugs, hacks). Disclosure (Art. 279) is committed by someone who already knew the secret lawfully due to their position (e.g., sales director) but disseminates or uses it illegally.
If I know prices by heart, can I use them?expand_more
The Supreme Court distinguishes between 'acquired knowledge' (business acumen) and reserved data. Using your experience is not a crime. But if you systematically reproduce complex rates that are impossible to memorize without documentary support, data theft is presumed.
Is it a crime if the information was public online?expand_more
No. What is public domain is not secret. The defense is usually based on proving that anyone could obtain that data by googling (Reverse Engineering).
What about Whistleblowing?expand_more
If you reveal secrets to report a crime (corruption, tax fraud), you are protected by the EU Directive if you use appropriate internal or external channels. But if you leak data to the press indiscriminately for revenge, there is no protection.
How is data theft proven?expand_more
Through computer forensic expertise. We analyze access logs, USB devices connected hours before dismissal, mass email sends to personal accounts, or unusual cloud downloads.
Can they search my work computer to prove it?expand_more
Yes, if the company warned it could do so. If there are well-founded suspicions, they can also request a court order to search personal devices if they are believed to contain the stolen data.
Can they fire me and also report me criminally?expand_more
Yes. Disciplinary dismissal (labor) and the complaint (criminal) are parallel paths. A criminal conviction makes it easier for the company to later claim civil compensation for damages (loss of profit).
I am a mental administrator, can I use my company's data for another of mine?expand_more
No. It is a crime of unfair administration concurrent with disclosure of secrets. The duty of loyalty prevents self-benefit at the expense of the managed company's assets.
When does the crime expire?expand_more
5 years after it was committed. But in continued secrets (permanent use of a stolen formula), the period may not start running while the secret is still being exploited.
What is the penalty for selling secrets to a foreign company?expand_more
These are crimes against intellectual or industrial property that may have aggravating factors. If it affects national interest or defense, we enter treason or espionage crimes, much more serious.
Is the receiving company liable?expand_more
Yes. Art. 280 CP punishes anyone who, knowing the illicit origin, 'uses' the secrets discovered by another. The company that hires the 'data thief' and takes advantage of them commits a crime.

Looking for a Business Secrets Defense Lawyer in Spain?

As a national law firm, we offer specialized criminal defense in courts across Madrid and the rest of Spain. We handle each Business Secrets Defense case with the urgency and technical rigor it requires from day one.

Do you need specialised legal assistance?

The judicial system is complex. We have the criminal-law specialisation and technical resources required to take on the defence.

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