New research suggests more than 30% of Irish workers have had an online account compromised since they started working remotely due to COVID-19.
Research was carried out by OneLogin to mark World Password Day on Thursday.
It found that 36% of those surveyed are using personal computers for remote working, while 44% admit to using their corporate Zoom account for socialising with friends and family.
Some 25% use work devices for online gambling or gaming - and 13% use it to access adult entertainment sites.
The research also suggests that 24% of remote workers have updated their home WiFi password in the last month - while 50% have done so in the last 12 months.
The remaining 26% have not updated their home WiFi password in the last two years or more.
Nine percent of those surveyed admit to doing work using public WiFi.
Some 11% say they have shared their work computer login details with at least one family member, and 13% say they have let a family member use their work computer for personal use.
Just over 80% of remote workers have received remote working guidelines from their employers, and 65% think their working culture will change to facilitate more remote working in future.
Brad Brooks, CEO and president of OneLogin, says: "Organisations everywhere are facing unprecedented challenges as millions of people are working from home.
"Passwords pose an even greater risk in this WFH environment and - as our study supports - are the weakest link in exposing businesses’ customers and data to bad actors."
"This global remote work study shines the light on the importance of ensuring the right people are accessing internal and customer data at all times.
"It underscores the importance of protecting employees and their entire organisations, aligning with privacy and security best practices around the world".
The study examined 5,000 remote employees from Ireland, the United Kingdom, United States, Germany and France.
It included an Irish sample size of 1,000 remote workers.