In practice some libraries refuse to give out such information, although this is technically illegal. The minister of justice opposed the new law, although the article does not say why. Like all Swedish laws, there are plenty of exceptions. Data may be released if the release does no harm, if the patron borrows technical literature for use at work, if the data are needed to calculate compensation to authors, or if the data are to be used for research. However, for performance reasons, they do not exploit the isolation features of the hardware.
All application code runs in a single address space and at the same level of privilege.
While this strategy is inherently dangerous, there are compensating controls imposed on application code. The strategy has been very successful. The res systems have achieved extraordinary reliability and stability for any kind of system, let alone systems which are both mammoth and monolithic. Portability is another issue. Like most application code, the code of the res systems is sensitive to its environment.