“Many of the reported cases were attempted attacks, rather than successful attacks,” it said in its latest report.
The NCSC added that it assumed the real number of attacks was “substantially” bigger as there is no reporting obligation in Switzerland.
In its semi-annual report published on Thursday, most reported cases concerned different types of fraud, notably emails supposedly sent by law enforcement agencies.
Other forms of fraud include payments, investment and classified ads.
In the period under review, the number of attacks with encryption Trojans, so-called ransomware also increased, often involving double extortion to threaten the victims.
Alleged parcel notifications or delivery problems have also been used in many cases of phishing during the Covid-19 pandemic, the NCSC said.
The report points out that perpetrators often send text messages or emails to their victims.
Train vs plane: would you take a direct train between London and Geneva?
Eurostar is planning to run direct trains from Britain to Germany and Switzerland from the early 2030s. Would you favour the train over the plane? If not, why not?
Swiss voters to decide on three issues on November 30
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Compulsory service for all, a tax on million-dollar inheritances, more indirect subsidies for media publishers: the electorate can vote on these three national issues on November 30.
Dollar falls to lowest level against franc in 14 years
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The weakness of the dollar in recent weeks continues. The greenback hit new lows for the year against both the franc and the euro on Tuesday.
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Swiss President Karin Keller-Sutter has met French President Emmanuel Macron to discuss the EU treaties and geopolitical challenges. US tariffs were also part of the bilateral talks.
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Swiss moors and floodplains are in a poor state. Researchers say further efforts are needed to preserve these biotopes in the long term.
Drones banned during the three Euro games in St Gallen
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The St. Gallen government has issued a temporary ban on flying drones around the football stadium in St. Gallen. The measure will apply on three match days of Euro 2025, which starts on Wednesday.
EU nationals come to Switzerland primarily to work
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Given the demographic slowdown, the Swiss labour market must remain open, argues the State Secretariat for Economic Affairs (SECO) in its annual report on the free movement of people.
UN expert accuses Glencore of complicity with Israel
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The UN Special Rapporteur on the Palestinian Territories has accused Zug-based Glencore of profiting from an Israeli economy that has become "an economy of genocide".
Swiss parliamentary commission to investigate F-35 purchase
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The Swiss government and the other responsible authorities must once again answer critical questions about the procurement of the F-35 fighter jets.
Objections and appeals most common obstacles to residential construction projects
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Objections and appeals are most frequently responsible for delays in new residential construction projects in Switzerland.
Swiss electricity prices predicted to fall in 2026
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Electricity prices in 2026 are likely to be lower than this year, according to a survey. The main reason is the fall in prices on the electricity market.
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When is a cyberattack a war crime?
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The damage caused by cyberattacks in Ukraine pales in comparison with the atrocities on the ground. But that does not mean civilians are spared.
Ransomware attackers demand $400,000 from Swiss website
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A popular Swiss price comparison website has been shut down by ransomware attackers demanding $400,000 (CHF370,000) in cryptocurrencies to put it back online.
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Swissport, the world’s largest airport ground services support and cargo handling company, is hit by ransomware attackers.
Hackers demand millions in ransom for stolen Stadler Rail documents
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The hackers who stole data from Swiss train manufacturer Stadler Rail in early May have demanded payment of a ransom of $6 million in Bitcoin.
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If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at english@swissinfo.ch.