I am admittedly no law expert, but I think industrial sanctions (imposition of industrial sanctions) fits your context. I found hits for labor-related actions, labor actions and industrial actions but that seems to pertain more to strikes and labor-management disputes. These legal texts can be a bear; I don't know of any profession that uses so many words to say so little, especially in Romance languages. And I am the very proud parent of a lawyer!

I could only find this law on one site, an Andorran one in Catalan, so maybe your text is a translation from that language.

I can't cut and paste article 95 because it's a PDF, but it's here if you're interested. It simply says that companies can punish employees if they misbehave - in your case, by breaching confidentiality.

http://www.consellgeneral.ad/ca/arxiu/arxiu-de-lleis-i-texto...

Industrial actions relate to trade unions and cases of strike, employees' rights, etc.
Sanction is more appropriate, and Industrial really means at a Corporate level (an Industry is the line of business).

I attach a reference of deeds having to do with employee misconduct.

I am not convinced about the word 'sanction' in this context. This text is about misconduct in the workplace (an employee sharing trade secrets). Whenever an employee is underperforming or is guilty of misconduct, the manager will invoke the disciplinary procedure to ascertain how serious the underperformance / misconduct is and then decide whether the outcome is a first warning, second warning, dismissal, etc
I think that ´sanctions´implies that the employee may retain their post, whereas it may be that the outcome is dismissal. Hence, I would use 'workplace disciplinary procedure'.

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Note added at 16 horas (2020-08-08 10:10:39 GMT)
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This is the link to the relevant piece of legislation http://www.consellgeneral.ad/ca/fitxers/documents/lleis-2018... el artículo 95 otorga al patrón la facultad de sancionar a asalariado o bien de acuerdo a lo que establece esta ley o según el convenio colectivo. Luego en el inciso 2 se establece la manera en que el empleador debe categorizar la falta: leve, grave o muy grave.

Changing working conditions amid disclosures and discontent between both parties (workers and business company management) can lead to industrial action.

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Note added at 1 hr (2020-08-07 19:20:32 GMT)
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www.accioneslaborales.cl
"Acciones laborales es un estudio de abogados especializados en materia laboral respecto de juicios laborales complejos y procedimientos administrativos llevados a cabo ante la dirección del trabajo. Es un tema epecializado en todas aquellas materias que forman parte del derecho laboral, para defender los intereses de trabajadores y asimismo asesorar debidamente al empleador."
"'Industrial 'working' actions' is a lawyers' study specializing in industrial (labour) issues with respect to complicated labour (industrial) decisions and administrative procedures carried out by labour (industrial) management. It's a specialist topic area in all those aspects which form statutory (industrial or workers' rights) to defend workers' interests as well as to appropriately advise or serve as an employer's consultant (mediation)."

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Note added at 3 days 18 hrs (2020-08-11 12:25:37 GMT) Post-grading
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"An industrial action is any action, such as a strike, taken by employees in industry to protect against working conditions, redundancies etc."
www.gov.uk/government/publications/industrial-action-and-th...
"Employers and their customers and suppliers understand the law relating to industrial action. Trade unions and workers understand the protection the law gives them if they organize or take industrial action.
The information from the one who asked the question also states:
"La empresa tendrá competencias sancionadoras en el caso de incumplimiento laboral."
"The business company will have disciplinary powers and the power to sanction in cases of non-compliance at work."