Yes,using aadhaar card almost every necesserily personal things can be hacked using aadhaar card.
How??
See,aadhaar card has all the minimum data by using which a hacker can hack personal information.Aadhaar card has a person's full name,date of birth & address.
Using these information a hacker can easily figured out that particular person from the aadhaar database but the hacker must rushed into the aadhaar database(by legal or illegal way).
Then the hacker got that person's mobile number.Now the hacker have mobile number,aadhaar number,full name,address,dob.These are enough for a hacker to crack that person's almost all personal data & can access to sensitive things like net banking etc.