I found it!

In the settings.xml file I surrounded the password between "" like "passwordwith&therestofthepassword"

<profile>
            <id>keystorePassword</id>
            <properties>
                <keystorePassword>passwordwith&amp;therestofpassword</keystorePassword>
            </properties>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
        </profile>