LONDON — Anne Keast-Butler, director of the communications intelligence agency GCHQ, will deliver a speech at Bletchley Park warning that Russia is “relentlessly targeting critical infrastructure, democratic processes, supply chains and public trust” in Britain and Europe. The address, scheduled as the annual GCHQ director’s lecture, will outline what Keast-Butler describes as an intensifying campaign of espionage, sabotage, and technological theft by Moscow.

During the speech, Keast-Butler plans to accuse Russia of stealing technology and plotting sabotage and assassination attempts. She will also argue there must be an effort “from boardrooms to living rooms” to make cybersecurity “10 times more urgent.” Her remarks follow recent allegations from Sweden, Poland, Denmark, and Norway that Russian-linked hackers have targeted critical infrastructure such as power plants and dams. Western intelligence agencies have issued a series of alerts in recent months indicating that Russia is escalating hostile actions in a “gray zone” that falls just below the threshold of open warfare.

Keast-Butler will also address the impact of rapid advances in artificial intelligence, stating that “the ground beneath our feet is shifting” and there is a “narrowing window for the U.K. and allies to stay ahead” of countries such as China, which she will describe as a science and technology “superpower.”

The venue for the speech, Bletchley Park, is a manor house 45 miles northwest of London where codebreakers during World War II helped crack Nazi Germany’s encrypted communications. Their work both shortened the war and hastened the birth of modern computing.

Keast-Butler plans to stress the importance of international partnerships at a time when relations between London and Washington have been strained by former U.S. President Donald Trump’s “America First” foreign policy and his past disregard for longtime allies.

Her forthcoming remarks align with recent warnings from other U.K. officials. Richard Horne, head of the U.K.’s National Cyber Security Centre, warned last month that hostile states including Russia, China, and Iran are responsible for the most serious cyberattacks facing the country. Horne said such cyberattacks could increase dramatically if Britain becomes involved in an international conflict.