Artificial intelligence could potentially be misused to develop biological weapons.
uncertain
intelligence → misuse → weapons
This may sound like science fiction, but scientists, security services, and international organizations are all looking at how to deal with this scenario.
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scientists → sound → scenario
Pathogens can be analyzed and altered with ever greater precision thanks to ongoing developments in biotechnology.
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Pathogens → analyze → biotechnology
Meanwhile, AI is able to evaluate vast quantities of data at astonishing speeds.
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AI → evaluate → speeds
As a result, experts are warning that, in the long term, modern technologies could also be misused to develop biological weapons.
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technologies → warn → weapons
In October 2026, Ken McCallum, head of the British domestic intelligence service MI5, warned that artificial intelligence could increase the risk from existing, or new, biological weapons – including from non-state actors.
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intelligence → warn → actors
Fine line between valid research and misuse
A report by the American AI company Anthropic in September 2026 highlights the topicality of the debate.
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report → highlight → debate
Anthropic said it had identified and blocked numerous attempts to use its AI assistant Claude in connection with possible biological weapon research.
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it → say → research
The report said these attempts included grant applications for so-called "gain-of-function" research, as well as projects to research avian influenza variants that were potentially the most transmissible to mammals.
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that → say → mammals
At the same time, Anthropic stressed that, although it could have a military application, such research could also relate to medical prevention.
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research → stress → prevention
The difficulty in distinguishing between legitimate science and its possible misuse is one of the biggest problems in terms of the control of modern biotechnologies.
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difficulty → distinguish → biotechnologies
Many pathogens — bacteria, viruses, fungi, and certain biological toxins — have the potential for weaponization.
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pathogens → have → weaponization
Familiar diseases include plague, smallpox, and botulinum toxin, but anthrax is one of the most notorious biological agents.
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anthrax → include → agents
Its resistant spores can survive a long time in the environment, and it has also been the focus of research by state biological weapons programs.
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it → survive → programs
The World Health Organization (WHO) and the United Nations Office for Disarmament Affairs define a biological weapon as the targeted release of such biological substances for the purpose of injuring people, animals, or plants.
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Organization → define → people
A biological weapon usually has two components: The biological substance itself, and a system for disseminating it.
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weapon → have → it
Experts refer to these as the "agent," such as a virus or bacterium, and the "delivery mechanism."
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Experts → refer → virus
Examples of the latter include missiles, spraying systems, and contaminated food.
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Examples → include → missiles
Biological weapons belong to the so-called ABC weapons, alongside atomic (nuclear) and chemical weapons.
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weapons → belong → weapons
They are often also counted as weapons of mass destruction.
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They → count → destruction
How do they differ from chemical weapons?
Biological and chemical weapons differ in their mode of operation.
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weapons → differ → operation
Chemical weapons injure people through the toxic effects of chemical substances such as sarin or mustard gas.
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weapons → injure → sarin
They will often take effect within minutes, or even seconds.
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They → take → minutes
Examples of the use of chemical weapons are the gas attacks in World War I, which involved chlorine gas, and later mustard gas; and the deployment of the nerve gas sarin in the Syrian civil war and by Saddam Hussein in Iraq.
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which → involve → Iraq
Biological weapons, on the other hand, cause infectious disease.
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weapons → cause → disease
The effects become apparent only hours, days, or even weeks after they have been deployed.
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they → become → ?
Some pathogens are also capable of spreading from person to person, meaning that the outcome is difficult to predict.
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outcome → spread → person
To summarize: Chemical weapons kill or injure through immediate toxicity, whereas biological weapons cause diseases.
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weapons → summarize → diseases
The possibility of human-to-human transmission makes the effect of a biological weapon particularly hard to calculate.
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effect → make → weapon
Biological weapons are prohibited under international law.
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weapons → prohibit → law
The first Biological Weapons Convention (BWC) came into force in 1975.
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Convention → come → 1975
This prohibits the development, stockpiling, acquisition, retention, production, and transfer of biological and toxin-based weapons.
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This → prohibit → weapons
The Convention, which has been ratified by 189 countries, can be seen as a development of the Geneva Protocol of 1925, which banned the use of biological weapons as a method of warfare.
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which → ratify → warfare
Only a few countries have not signed the agreement, or have signed but not ratified it, including Israel, Egypt, and Syria.
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countries → sign → Israel
All those who have acceded to the Convention have also committed themselves to destroying all stocks, production sites, and means of conveyance.
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who → accede → conveyance
Chemical weapons are also internationally banned, but their control is seen as much more highly developed.
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control → ban → ?
The Chemical Weapons Convention is implemented by the Organization for the Prohibition of Chemical Weapons (OPCW), which can carry out inspections and oversee the destruction of chemical weapons stocks.
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which → implement → stocks
States fear that inspection could expose sensitive research data pertaining to medicine, biotechnology, or the pharmaceutical industry.
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inspection → fear → medicine
This is why the control of biological weapons relies to a great extent on transparency, voluntary reporting, and good faith.
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control → rely → transparency
One of the best-known examples of why the ban on biological weapons is insufficient on its own to prevent their use occurred in the United States in 2001.
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ban → know → 2001
…and 14 more, not listed.