Computers have certainly changed the world compared to when the world existed without computers. Among the ways they have made the world less safe are:

1. Aggregation of data. Whether it is personal, commercial, or government data with the advent and adoption of computers we now have centralized resources that are very dense with sensitive information. These databases are susceptible to catastrophic loss simply because they tend to be single points of failure, especially with personal and consumer databases.
2. Unintentional exposures. Particularly with youth and children they can inadvertently expose themselves to predators and criminals very quickly and permanently with a computer. Everything that is put on the internet, particularly with social media providers, is forever preserved. The nature of many sites presents challenges for parents and caregivers to monitor their child’s activities. Meanwhile predators lurk in the same spaces with deviant intentions.
3. Computers are depended on for critical tasks. In many cases using a computer for critical/ no fail tasks in a safety measure compared with using a human, however computers are susceptible to failure and malicious intent. Those critical failures can be catastrophic cause human loss of life.

In other ways computers have made our world considerably safer.

1. Digital cryptography. Securing communications is among the most used computer functions. Humans can share sensitive information with greater speed and security now more than ever with no end in sight.
2. Precision. Whether in the medical field or in aviation and countless other situations the precision and dependability of a well-designed and functioning computer cannot be matched by humans. Use of a computer to augment traditionally human only precise tasks has decreased training time and increased efficacy of skilled and high-risk tasks.
3. Measurements. Computers have excelled science fields by taking measurements in different environments. In natural science computers have been leveraged to measure atmospheric, oceanic, and other conditions to predict and recognize impacts whereas without it is possible that the human could not or would no detect changes until irreversible changes had occurred.