One of my ex-student’s parents was an incredible parent, by all accounts. She went through every single worksheet and assignment from school. She helped talk her son through research for all group work. She worked together with her son to come up with a solid study plan for all tests and exams. All that being said, she also kept a tight watch on his screen use. My student was 14 and every communication or scroll was strictly monitored – or as some would say: his phone was spied on.
It’s one of the most common dilemmas facing Singapore parents today. Our teenagers are spending enormous amounts of time on their devices – Singaporeans average 6 hours and 49 minutes of daily social media use, with teens most active on TikTok and Instagram – and the risks are real. Cyberbullying, inappropriate content, online predators, and the well-documented effects of social media on adolescent mental health are legitimate concerns, not parental paranoia.
However, covert surveillance – going through your child’s phone without their knowledge – is not the answer. Here’s why.
1. If They Find Out That Their Phone Has Been Spied On, You Lose Far More Than You Gain
The question isn’t whether secret monitoring feels justified. The question is what happens when your teenager discovers it, and they usually do.
Research is consistent on this point: when a teenager finds out they have been secretly monitored, it is experienced as a fundamental breach of trust. Not as a parenting decision they can understand in retrospect, but as a betrayal. The damage to the relationship can take years to repair. In the meantime, your teenager is less likely to come to you when something genuinely goes wrong.
The safety you were trying to create through monitoring gets replaced by a relationship in which your child is actively working to hide things from you. Which brings us to the next point.
2. A Phone Getting Spied On Often Makes the Behaviour Worse
Researchers call it the Pandora effect: as parental monitoring of phone use increases, adolescent phone use can actually increase too. The reason is psychological reactance. When teenagers feel their autonomy is being constrained, they push back against the constraint, often by doing more of the thing being restricted.
Covert surveillance, in particular, tends to drive behaviour underground rather than stopping it. A teenager who knows they’re being watched finds workarounds. A second phone. A friend’s device. A different account. You’ve now created secrecy as a skill.
Parental psychological control, which is monitoring that is coercive, hidden, and not agreed upon, is associated in research with negative mental health outcomes in adolescents, including anxiety, low self-esteem, and what psychologists describe as negative cognitions about relationships with authority figures.
3. Privacy Is Not a Privilege — It’s a Developmental Need
We tend to talk about teen privacy as something earned, something that can be taken away as a consequence. Developmental psychology frames it differently: the growing need for privacy in adolescence is not defiance. It is development.
Teenagers are in the process of forming independent identities. They are testing values, navigating friendships and making sense of who they are separate from their families. This process requires some space that is not surveilled by parents. The same way a child learning to walk needs to be allowed to fall, a teenager forming an identity needs a private interior life.
This doesn’t mean no limits. It means recognising that granting appropriate privacy to a teenager is not weakness. It is part of helping them grow into a healthy adult.
4. It Bypasses the Conversation You Actually Need to Have
If you’re tempted to check your teenager’s phone, there is something specific driving that instinct. A behaviour change you’ve noticed. A name that keeps coming up. A gut feeling that something is off. That specific concern is worth addressing, but covert surveillance is not how to address it.
What you actually need is a conversation. Conversations require trust, which requires not having secretly gone through their phone.
Research on adolescent online safety consistently finds that the most effective approach is not restrictive monitoring but what researchers call evaluative monitoring. This involves discussing media use with teens, talking through what they’re seeing online and building the kind of relationship where they feel they can come to you. Safety, in this framing, is not about knowing exactly what’s on their phone. It’s about whether they’d call you if something went wrong.
5. There Are Better Tools Available – and Your Teen Can Know About Them
This is not an argument for zero oversight. Especially for younger teenagers, some level of parental involvement in online life is appropriate and protective. However, there’s a significant difference between covert surveillance and transparent agreements.
Screen time limits set together, with your teenager’s input, are more likely to be respected than ones imposed secretly. Agreed-upon app restrictions, discussed openly, are more sustainable than hidden monitoring software. Keeping devices out of bedrooms at night, a rule applied consistently and explained honestly, is associated with better sleep and lower problematic phone use.
The key word in all of these is together. Teenagers who are part of the decision-making process around their own digital lives develop better self-regulation than those for whom rules simply appear and disappear.
So What Do You Do If You Genuinely Find Something?
Sometimes you don’t go looking, but something lands in front of you: an accidental glimpse, a notification, a message you weren’t supposed to see. What you see is alarming.
In that case: acknowledge how you came across it, don’t pretend you didn’t see it, and have the conversation directly. “I saw something I wasn’t looking for, and I need to talk to you about it” is honest. It preserves your integrity even in a difficult moment. It models the kind of directness you’re hoping your teenager will eventually bring to you.
The goal of every difficult parenting conversation is not to win. It’s to keep the door open. The conversations that matter most – about safety, about relationships, about the things teenagers are genuinely struggling with – will only happen if your teenager believes you are someone they can talk to.
That belief is built slowly and lost quickly. Guard it accordingly.
At Curio, we work with teenagers every week and understand the pressures they face – academically and beyond. If your child is going through a difficult period, many of our professionally trained tutors are trained to notice and respond with care.
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