The Tax and Customs Authority (Autoridade Tributária e Aduaneira or AT) has issued warnings regarding an increase in fraudulent schemes targeting taxpayers during the current income tax (Imposto sobre o Rendimento de Pessoas Singulares or IRS) filing period. Criminals are using the agency's name to send deceptive messages about refunds or outstanding debts to steal personal information.

The Security Intelligence Service (Serviço de Informações de Segurança or SIS) has issued an alert regarding a foreign state campaign targeting WhatsApp and Signal accounts. The operation uses social engineering and AI-generated content to trick government officials, diplomats, and military personnel into compromising their data. Residents should be cautious of unsolicited messages or unusual requests for account verification codes.

The Government approved a new cybersecurity regime that transposes the EU's NIS2 Directive into national law; the rules are due to take effect in April. The law imposes stronger security duties on businesses and public bodies, introduces million-euro fines for breaches and raises reputational risks for organisations that fail to comply. Companies operating in Portugal should assess NIS2-related responsibilities now and prepare governance, incident-reporting and compliance measures. Business owners and IT managers should prioritise cyber readiness ahead of the April deadline.

Público reports a joint venture in rail technology has been created with Stadler holding 51% and Critical Software 49% of the new company, which starts this month with about 100 staff and aims to reach 300 employees within three years. The venture will develop rail‑technology solutions in Portugal and could expand hiring in engineering and software roles. Tech and transport sector workers should watch for recruitment and contract opportunities in the coming months.