How can serialisation/deserialisation break immutability?

Question

I was asked this question in an interview. The interviewer wanted to know how to make an object immutable. and then he asked what if I serialise this object - will it break immu

Answer 1

You can prevent from serialization or cloning with the help of SecurityManager in java

public final class ImmutableBean {
private final String name;

public ImmutableBean(String name) {
    this.name = name;
    //this line prevent it form serialization and reflection
    System.setSecurityManager(new SecurityManager());
}

public String getName() {
    return name;
}

}