The idiom "a sitting duck" means a person or thing that is easy to attack or harm because they are not aware of the danger or are unable to defend themselves. It is often used to describe someone who is vulnerable or helpless.
For example, imagine a group of people playing a game of paintball. If one of the players is standing out in the open without any cover, they are a sitting duck because they are an easy target for the other players to shoot at.
Another example could be a company that has weak security measures in place. They are a sitting duck for cybercriminals who can easily hack into their systems and steal sensitive information.
Overall, the idiom "a sitting duck" is used to describe a situation where someone or something is vulnerable and at risk of being attacked or harmed.
• The unarmed soldiers were a sitting duck for the enemy's ambush.
• The company's lack of innovation made it a sitting duck for competitors to take over.
• Without any security measures, the company's website was a sitting duck for hackers to attack.
• The little bird was a sitting duck for the cat.
• The weakened economy made the country a sitting duck for foreign investors to take advantage of.
• The tourist was a sitting duck for the pickpocket in the crowded market.