TKMS Battles Cyber Attack While Advancing $100 Billion Canadian Submarine Deal

ThyssenKrupp Marine Systems navigates a ransomware attack on its Atlas Elektronik unit while locking in submarine megadeals worth €40 billion, as stock volatility persists.

ThyssenKrupp Marine Systems (TKMS) finds itself pulled in two directions. A ransomware attack on its Atlas Elektronik subsidiary has drawn attention to cybersecurity vulnerabilities, even as the shipbuilder locks in a string of megadeals that have pushed its potential order backlog to roughly €40 billion. The contrasting forces are testing investor confidence in a stock that has already swung more than 80 percent over the past year.

The Canadian government named TKMS the preferred supplier for its Canadian Patrol Submarine Project in early July, bringing the Kiel-based company a decisive step closer to a contract for up to twelve Type 212CD submarines. Including lifecycle costs, the total program is estimated at around 100 billion Canadian dollars — a sum that dwarfs TKMS’s current market capitalization of €5.45 billion. The cyber attack, meanwhile, was claimed by a group calling itself “The Gentlemen,” which says it stole more than a terabyte of data from Atlas Elektronik. TKMS confirmed the breach but dismissed the scale of the claims as exaggerated, stressing that the affected North American unit operates in an isolated IT environment separate from the main corporate network.

The Canadian project is just one of several large orders reshaping TKMS’s outlook. CEO Oliver Burkhard told the Frankfurter Allgemeine Zeitung that the Indian submarine deal under Project 75I — covering six boats worth roughly €8 billion — is expected to close by the end of 2026. Saab signed a supply contract worth €787 million to equip four new MEKO A-200 DEU frigates with command and weapon systems, with integration scheduled between 2029 and 2032. The German parliament’s budget committee had already approved €6.3 billion for the initial four frigates earlier in July, with options for four more. Burkhard pushed back against concerns that the swelling order book — which has grown from a record €18.2 billion at the end of March 2026 to a potential €40 billion — could overwhelm the company’s operational capacity.

The stock has not mirrored the order euphoria. After touching €106.58 in October, the shares have fallen roughly 24 percent, closing last Friday at €81.00. That still represents a gain of 22.36 percent since the start of the year. Burkhard attributed the slide from around €93 in early July to the surprise cancellation of the F126 frigate project by the German defense ministry. Analyst opinion is split: Deutsche Bank reiterated a buy rating with a price target of €110, citing the string of procurement wins as evidence of technological leadership, while Bernstein Research kept a market-perform rating and a €76 target, expressing skepticism that the complex megaprojects will translate into sustained margins.

Behind the headline figures, TKMS is also navigating changes in its ownership structure. Private equity firm Carlyle is reported to be examining another potential investment, while talks continue with state-owned KfW about a minority government stake. For now, the stock’s annualized volatility of 82.77 percent suggests that even a record order book and a preferred supplier status in Canada are not enough to calm the market’s doubts about execution — at least not yet.